21765586136

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:925

約数の個数: 128

約数和(自身を含む): 49332879360

約数和(自身を除く): 27567293224

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 127, 161, 184, 254, 271, 322, 491, 508, 542, 644, 889, 982, 1016, 1084, 1288, 1778, 1897, 1964, 2168, 2921, 3437, 3556, 3794, 3928, 5842, 6233, 6874, 7112, 7588, 11293, 11684, 12466, 13748, 15176, 20447, 22586, 23368, 24932, 27496, 34417, 40894, 43631, 45172, 49864, 62357, 68834, 79051, 81788, 87262, 90344, 124714, 133061, 137668, 158102, 163576, 174524, 240919, 249428, 266122, 275336, 316204, 349048, 436499, 481838, 498856, 532244, 632408, 791591, 872998, 931427, 963676, 1064488, 1434211, 1583182, 1745996, 1862854, 1927352, 2868422, 3060403, 3166364, 3491992, 3725708, 5541137, 5736844, 6120806, 6332728, 7451416, 10039477, 11082274, 11473688, 12241612, 16898747, 20078954, 21422821, 22164548, 24483224, 33797494, 40157908, 42845642, 44329096, 67594988, 80315816, 85691284, 118291229, 135189976, 171382568, 236582458, 388671181, 473164916, 777342362, 946329832, 1554684724, 2720698267, 3109369448, 5441396534, 10882793068, 21765586136]

約数ペア:

[(1, 21765586136), (2, 10882793068), (4, 5441396534), (7, 3109369448), (8, 2720698267), (14, 1554684724), (23, 946329832), (28, 777342362), (46, 473164916), (56, 388671181), (92, 236582458), (127, 171382568), (161, 135189976), (184, 118291229), (254, 85691284), (271, 80315816), (322, 67594988), (491, 44329096), (508, 42845642), (542, 40157908), (644, 33797494), (889, 24483224), (982, 22164548), (1016, 21422821), (1084, 20078954), (1288, 16898747), (1778, 12241612), (1897, 11473688), (1964, 11082274), (2168, 10039477), (2921, 7451416), (3437, 6332728), (3556, 6120806), (3794, 5736844), (3928, 5541137), (5842, 3725708), (6233, 3491992), (6874, 3166364), (7112, 3060403), (7588, 2868422), (11293, 1927352), (11684, 1862854), (12466, 1745996), (13748, 1583182), (15176, 1434211), (20447, 1064488), (22586, 963676), (23368, 931427), (24932, 872998), (27496, 791591), (34417, 632408), (40894, 532244), (43631, 498856), (45172, 481838), (49864, 436499), (62357, 349048), (68834, 316204), (79051, 275336), (81788, 266122), (87262, 249428), (90344, 240919), (124714, 174524), (133061, 163576), (137668, 158102)]