21170512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3251}}^1$

素因数の和:3307

約数の個数: 40

約数和(自身を含む): 45970272

約数和(自身を除く): 24799760

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3251, 3256, 6502, 6512, 13004, 26008, 35761, 52016, 71522, 120287, 143044, 240574, 286088, 481148, 572176, 962296, 1323157, 1924592, 2646314, 5292628, 10585256, 21170512]

約数ペア:

[(1, 21170512), (2, 10585256), (4, 5292628), (8, 2646314), (11, 1924592), (16, 1323157), (22, 962296), (37, 572176), (44, 481148), (74, 286088), (88, 240574), (148, 143044), (176, 120287), (296, 71522), (407, 52016), (592, 35761), (814, 26008), (1628, 13004), (3251, 6512), (3256, 6502)]