21555210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1087}}^1$

素因数の和:1758

約数の個数: 32

約数和(自身を含む): 51858432

約数和(自身を除く): 30303222

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 661, 1087, 1322, 1983, 2174, 3261, 3305, 3966, 5435, 6522, 6610, 9915, 10870, 16305, 19830, 32610, 718507, 1437014, 2155521, 3592535, 4311042, 7185070, 10777605, 21555210]

約数ペア:

[(1, 21555210), (2, 10777605), (3, 7185070), (5, 4311042), (6, 3592535), (10, 2155521), (15, 1437014), (30, 718507), (661, 32610), (1087, 19830), (1322, 16305), (1983, 10870), (2174, 9915), (3261, 6610), (3305, 6522), (3966, 5435)]