21129696

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 144

約数和(自身を含む): 70447104

約数和(自身を除く): 49317408

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 47, 48, 56, 63, 72, 84, 94, 96, 112, 126, 141, 144, 168, 188, 223, 224, 252, 282, 288, 329, 336, 376, 423, 446, 504, 564, 658, 669, 672, 752, 846, 892, 987, 1008, 1128, 1316, 1338, 1504, 1561, 1692, 1784, 1974, 2007, 2016, 2256, 2632, 2676, 2961, 3122, 3384, 3568, 3948, 4014, 4512, 4683, 5264, 5352, 5922, 6244, 6768, 7136, 7896, 8028, 9366, 10481, 10528, 10704, 11844, 12488, 13536, 14049, 15792, 16056, 18732, 20962, 21408, 23688, 24976, 28098, 31443, 31584, 32112, 37464, 41924, 47376, 49952, 56196, 62886, 64224, 73367, 74928, 83848, 94329, 94752, 112392, 125772, 146734, 149856, 167696, 188658, 220101, 224784, 251544, 293468, 335392, 377316, 440202, 449568, 503088, 586936, 660303, 754632, 880404, 1006176, 1173872, 1320606, 1509264, 1760808, 2347744, 2641212, 3018528, 3521616, 5282424, 7043232, 10564848, 21129696]

約数ペア:

[(1, 21129696), (2, 10564848), (3, 7043232), (4, 5282424), (6, 3521616), (7, 3018528), (8, 2641212), (9, 2347744), (12, 1760808), (14, 1509264), (16, 1320606), (18, 1173872), (21, 1006176), (24, 880404), (28, 754632), (32, 660303), (36, 586936), (42, 503088), (47, 449568), (48, 440202), (56, 377316), (63, 335392), (72, 293468), (84, 251544), (94, 224784), (96, 220101), (112, 188658), (126, 167696), (141, 149856), (144, 146734), (168, 125772), (188, 112392), (223, 94752), (224, 94329), (252, 83848), (282, 74928), (288, 73367), (329, 64224), (336, 62886), (376, 56196), (423, 49952), (446, 47376), (504, 41924), (564, 37464), (658, 32112), (669, 31584), (672, 31443), (752, 28098), (846, 24976), (892, 23688), (987, 21408), (1008, 20962), (1128, 18732), (1316, 16056), (1338, 15792), (1504, 14049), (1561, 13536), (1692, 12488), (1784, 11844), (1974, 10704), (2007, 10528), (2016, 10481), (2256, 9366), (2632, 8028), (2676, 7896), (2961, 7136), (3122, 6768), (3384, 6244), (3568, 5922), (3948, 5352), (4014, 5264), (4512, 4683)]