21024830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{463}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 40089600

約数和(自身を除く): 19064770

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 239, 463, 478, 926, 1195, 2315, 2390, 4541, 4630, 8797, 9082, 17594, 22705, 43985, 45410, 87970, 110657, 221314, 553285, 1106570, 2102483, 4204966, 10512415, 21024830]

約数ペア:

[(1, 21024830), (2, 10512415), (5, 4204966), (10, 2102483), (19, 1106570), (38, 553285), (95, 221314), (190, 110657), (239, 87970), (463, 45410), (478, 43985), (926, 22705), (1195, 17594), (2315, 9082), (2390, 8797), (4541, 4630)]