21498270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 53637120

約数和(自身を除く): 32138850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 79, 94, 141, 158, 193, 235, 237, 282, 386, 395, 470, 474, 579, 705, 790, 965, 1158, 1185, 1410, 1930, 2370, 2895, 3713, 5790, 7426, 9071, 11139, 15247, 18142, 18565, 22278, 27213, 30494, 37130, 45355, 45741, 54426, 55695, 76235, 90710, 91482, 111390, 136065, 152470, 228705, 272130, 457410, 716609, 1433218, 2149827, 3583045, 4299654, 7166090, 10749135, 21498270]

約数ペア:

[(1, 21498270), (2, 10749135), (3, 7166090), (5, 4299654), (6, 3583045), (10, 2149827), (15, 1433218), (30, 716609), (47, 457410), (79, 272130), (94, 228705), (141, 152470), (158, 136065), (193, 111390), (235, 91482), (237, 90710), (282, 76235), (386, 55695), (395, 54426), (470, 45741), (474, 45355), (579, 37130), (705, 30494), (790, 27213), (965, 22278), (1158, 18565), (1185, 18142), (1410, 15247), (1930, 11139), (2370, 9071), (2895, 7426), (3713, 5790)]