21972636

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 70447104

約数和(自身を除く): 48474468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 23, 28, 34, 36, 42, 46, 51, 63, 68, 69, 84, 92, 102, 119, 126, 138, 153, 161, 204, 207, 223, 238, 252, 276, 306, 322, 357, 391, 414, 446, 476, 483, 612, 644, 669, 714, 782, 828, 892, 966, 1071, 1173, 1338, 1428, 1449, 1561, 1564, 1932, 2007, 2142, 2346, 2676, 2737, 2898, 3122, 3519, 3791, 4014, 4284, 4683, 4692, 5129, 5474, 5796, 6244, 7038, 7582, 8028, 8211, 9366, 10258, 10948, 11373, 14049, 14076, 15164, 15387, 16422, 18732, 20516, 22746, 24633, 26537, 28098, 30774, 32844, 34119, 35903, 45492, 46161, 49266, 53074, 56196, 61548, 68238, 71806, 79611, 87193, 92322, 98532, 106148, 107709, 136476, 143612, 159222, 174386, 184644, 215418, 238833, 261579, 318444, 323127, 348772, 430836, 477666, 523158, 610351, 646254, 784737, 955332, 1046316, 1220702, 1292508, 1569474, 1831053, 2441404, 3138948, 3662106, 5493159, 7324212, 10986318, 21972636]

約数ペア:

[(1, 21972636), (2, 10986318), (3, 7324212), (4, 5493159), (6, 3662106), (7, 3138948), (9, 2441404), (12, 1831053), (14, 1569474), (17, 1292508), (18, 1220702), (21, 1046316), (23, 955332), (28, 784737), (34, 646254), (36, 610351), (42, 523158), (46, 477666), (51, 430836), (63, 348772), (68, 323127), (69, 318444), (84, 261579), (92, 238833), (102, 215418), (119, 184644), (126, 174386), (138, 159222), (153, 143612), (161, 136476), (204, 107709), (207, 106148), (223, 98532), (238, 92322), (252, 87193), (276, 79611), (306, 71806), (322, 68238), (357, 61548), (391, 56196), (414, 53074), (446, 49266), (476, 46161), (483, 45492), (612, 35903), (644, 34119), (669, 32844), (714, 30774), (782, 28098), (828, 26537), (892, 24633), (966, 22746), (1071, 20516), (1173, 18732), (1338, 16422), (1428, 15387), (1449, 15164), (1561, 14076), (1564, 14049), (1932, 11373), (2007, 10948), (2142, 10258), (2346, 9366), (2676, 8211), (2737, 8028), (2898, 7582), (3122, 7038), (3519, 6244), (3791, 5796), (4014, 5474), (4284, 5129), (4683, 4692)]