21900616

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{967}}^1$

素因数の和:1141

約数の個数: 32

約数和(自身を含む): 43560000

約数和(自身を除く): 21659384

約数列:

[1, 2, 4, 8, 19, 38, 76, 149, 152, 298, 596, 967, 1192, 1934, 2831, 3868, 5662, 7736, 11324, 18373, 22648, 36746, 73492, 144083, 146984, 288166, 576332, 1152664, 2737577, 5475154, 10950308, 21900616]

約数ペア:

[(1, 21900616), (2, 10950308), (4, 5475154), (8, 2737577), (19, 1152664), (38, 576332), (76, 288166), (149, 146984), (152, 144083), (298, 73492), (596, 36746), (967, 22648), (1192, 18373), (1934, 11324), (2831, 7736), (3868, 5662)]