21531264

素因数分解:

$2^7\times 3^1\times {\mathrm{47}}^1\times {\mathrm{1193}}^1$

素因数の和:1257

約数の個数: 64

約数和(自身を含む): 58458240

約数和(自身を除く): 36926976

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 64, 94, 96, 128, 141, 188, 192, 282, 376, 384, 564, 752, 1128, 1193, 1504, 2256, 2386, 3008, 3579, 4512, 4772, 6016, 7158, 9024, 9544, 14316, 18048, 19088, 28632, 38176, 56071, 57264, 76352, 112142, 114528, 152704, 168213, 224284, 229056, 336426, 448568, 458112, 672852, 897136, 1345704, 1794272, 2691408, 3588544, 5382816, 7177088, 10765632, 21531264]

約数ペア:

[(1, 21531264), (2, 10765632), (3, 7177088), (4, 5382816), (6, 3588544), (8, 2691408), (12, 1794272), (16, 1345704), (24, 897136), (32, 672852), (47, 458112), (48, 448568), (64, 336426), (94, 229056), (96, 224284), (128, 168213), (141, 152704), (188, 114528), (192, 112142), (282, 76352), (376, 57264), (384, 56071), (564, 38176), (752, 28632), (1128, 19088), (1193, 18048), (1504, 14316), (2256, 9544), (2386, 9024), (3008, 7158), (3579, 6016), (4512, 4772)]