21542720

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2927}}^1$

素因数の和:2967

約数の個数: 56

約数和(自身を含む): 53547264

約数和(自身を除く): 32004544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2927, 3680, 5854, 7360, 11708, 14635, 23416, 29270, 46832, 58540, 67321, 93664, 117080, 134642, 187328, 234160, 269284, 336605, 468320, 538568, 673210, 936640, 1077136, 1346420, 2154272, 2692840, 4308544, 5385680, 10771360, 21542720]

約数ペア:

[(1, 21542720), (2, 10771360), (4, 5385680), (5, 4308544), (8, 2692840), (10, 2154272), (16, 1346420), (20, 1077136), (23, 936640), (32, 673210), (40, 538568), (46, 468320), (64, 336605), (80, 269284), (92, 234160), (115, 187328), (160, 134642), (184, 117080), (230, 93664), (320, 67321), (368, 58540), (460, 46832), (736, 29270), (920, 23416), (1472, 14635), (1840, 11708), (2927, 7360), (3680, 5854)]