21165048

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^2\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 59014800

約数和(自身を除く): 37849752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 79, 122, 158, 183, 237, 244, 316, 366, 474, 488, 549, 632, 711, 732, 948, 1098, 1422, 1464, 1896, 2196, 2844, 3721, 4392, 4819, 5688, 7442, 9638, 11163, 14457, 14884, 19276, 22326, 28914, 29768, 33489, 38552, 43371, 44652, 57828, 66978, 86742, 89304, 115656, 133956, 173484, 267912, 293959, 346968, 587918, 881877, 1175836, 1763754, 2351672, 2645631, 3527508, 5291262, 7055016, 10582524, 21165048]

約数ペア:

[(1, 21165048), (2, 10582524), (3, 7055016), (4, 5291262), (6, 3527508), (8, 2645631), (9, 2351672), (12, 1763754), (18, 1175836), (24, 881877), (36, 587918), (61, 346968), (72, 293959), (79, 267912), (122, 173484), (158, 133956), (183, 115656), (237, 89304), (244, 86742), (316, 66978), (366, 57828), (474, 44652), (488, 43371), (549, 38552), (632, 33489), (711, 29768), (732, 28914), (948, 22326), (1098, 19276), (1422, 14884), (1464, 14457), (1896, 11163), (2196, 9638), (2844, 7442), (3721, 5688), (4392, 4819)]