20871848

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{659}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 19757752

約数列:

[1, 2, 4, 8, 37, 74, 107, 148, 214, 296, 428, 659, 856, 1318, 2636, 3959, 5272, 7918, 15836, 24383, 31672, 48766, 70513, 97532, 141026, 195064, 282052, 564104, 2608981, 5217962, 10435924, 20871848]

約数ペア:

[(1, 20871848), (2, 10435924), (4, 5217962), (8, 2608981), (37, 564104), (74, 282052), (107, 195064), (148, 141026), (214, 97532), (296, 70513), (428, 48766), (659, 31672), (856, 24383), (1318, 15836), (2636, 7918), (3959, 5272)]