21959024

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 43821600

約数和(自身を除く): 21862576

約数列:

[1, 2, 4, 8, 16, 61, 122, 149, 151, 244, 298, 302, 488, 596, 604, 976, 1192, 1208, 2384, 2416, 9089, 9211, 18178, 18422, 22499, 36356, 36844, 44998, 72712, 73688, 89996, 145424, 147376, 179992, 359984, 1372439, 2744878, 5489756, 10979512, 21959024]

約数ペア:

[(1, 21959024), (2, 10979512), (4, 5489756), (8, 2744878), (16, 1372439), (61, 359984), (122, 179992), (149, 147376), (151, 145424), (244, 89996), (298, 73688), (302, 72712), (488, 44998), (596, 36844), (604, 36356), (976, 22499), (1192, 18422), (1208, 18178), (2384, 9211), (2416, 9089)]