21419220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8707}}^1$

素因数の和:8760

約数の個数: 48

約数和(自身を含む): 61443648

約数和(自身を除く): 40024428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8707, 17414, 26121, 34828, 43535, 52242, 87070, 104484, 130605, 174140, 261210, 356987, 522420, 713974, 1070961, 1427948, 1784935, 2141922, 3569870, 4283844, 5354805, 7139740, 10709610, 21419220]

約数ペア:

[(1, 21419220), (2, 10709610), (3, 7139740), (4, 5354805), (5, 4283844), (6, 3569870), (10, 2141922), (12, 1784935), (15, 1427948), (20, 1070961), (30, 713974), (41, 522420), (60, 356987), (82, 261210), (123, 174140), (164, 130605), (205, 104484), (246, 87070), (410, 52242), (492, 43535), (615, 34828), (820, 26121), (1230, 17414), (2460, 8707)]