21174528

素因数分解:

$2^8\times 3^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 57232000

約数和(自身を除く): 36057472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 79, 96, 128, 158, 192, 237, 256, 316, 349, 384, 474, 632, 698, 768, 948, 1047, 1264, 1396, 1896, 2094, 2528, 2792, 3792, 4188, 5056, 5584, 7584, 8376, 10112, 11168, 15168, 16752, 20224, 22336, 27571, 30336, 33504, 44672, 55142, 60672, 67008, 82713, 89344, 110284, 134016, 165426, 220568, 268032, 330852, 441136, 661704, 882272, 1323408, 1764544, 2646816, 3529088, 5293632, 7058176, 10587264, 21174528]

約数ペア:

[(1, 21174528), (2, 10587264), (3, 7058176), (4, 5293632), (6, 3529088), (8, 2646816), (12, 1764544), (16, 1323408), (24, 882272), (32, 661704), (48, 441136), (64, 330852), (79, 268032), (96, 220568), (128, 165426), (158, 134016), (192, 110284), (237, 89344), (256, 82713), (316, 67008), (349, 60672), (384, 55142), (474, 44672), (632, 33504), (698, 30336), (768, 27571), (948, 22336), (1047, 20224), (1264, 16752), (1396, 15168), (1896, 11168), (2094, 10112), (2528, 8376), (2792, 7584), (3792, 5584), (4188, 5056)]