21873180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2779

約数の個数: 96

約数和(自身を含む): 73704960

約数和(自身を除く): 51831780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2741, 3990, 5482, 7980, 8223, 10964, 13705, 16446, 19187, 27410, 32892, 38374, 41115, 52079, 54820, 57561, 76748, 82230, 95935, 104158, 115122, 156237, 164460, 191870, 208316, 230244, 260395, 287805, 312474, 364553, 383740, 520790, 575610, 624948, 729106, 781185, 1041580, 1093659, 1151220, 1458212, 1562370, 1822765, 2187318, 3124740, 3645530, 4374636, 5468295, 7291060, 10936590, 21873180]

約数ペア:

[(1, 21873180), (2, 10936590), (3, 7291060), (4, 5468295), (5, 4374636), (6, 3645530), (7, 3124740), (10, 2187318), (12, 1822765), (14, 1562370), (15, 1458212), (19, 1151220), (20, 1093659), (21, 1041580), (28, 781185), (30, 729106), (35, 624948), (38, 575610), (42, 520790), (57, 383740), (60, 364553), (70, 312474), (76, 287805), (84, 260395), (95, 230244), (105, 208316), (114, 191870), (133, 164460), (140, 156237), (190, 115122), (210, 104158), (228, 95935), (266, 82230), (285, 76748), (380, 57561), (399, 54820), (420, 52079), (532, 41115), (570, 38374), (665, 32892), (798, 27410), (1140, 19187), (1330, 16446), (1596, 13705), (1995, 10964), (2660, 8223), (2741, 7980), (3990, 5482)]