21518910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34157}}^1$

素因数の和:34177

約数の個数: 48

約数和(自身を含む): 63943776

約数和(自身を除く): 42424866

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34157, 68314, 102471, 170785, 204942, 239099, 307413, 341570, 478198, 512355, 614826, 717297, 1024710, 1195495, 1434594, 1537065, 2151891, 2390990, 3074130, 3586485, 4303782, 7172970, 10759455, 21518910]

約数ペア:

[(1, 21518910), (2, 10759455), (3, 7172970), (5, 4303782), (6, 3586485), (7, 3074130), (9, 2390990), (10, 2151891), (14, 1537065), (15, 1434594), (18, 1195495), (21, 1024710), (30, 717297), (35, 614826), (42, 512355), (45, 478198), (63, 341570), (70, 307413), (90, 239099), (105, 204942), (126, 170785), (210, 102471), (315, 68314), (630, 34157)]