31871398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 54684000

約数和(自身を除く): 22812602

約数列:

[1, 2, 13, 19, 26, 38, 149, 247, 298, 433, 494, 866, 1937, 2831, 3874, 5629, 5662, 8227, 11258, 16454, 36803, 64517, 73606, 106951, 129034, 213902, 838721, 1225823, 1677442, 2451646, 15935699, 31871398]

約数ペア:

[(1, 31871398), (2, 15935699), (13, 2451646), (19, 1677442), (26, 1225823), (38, 838721), (149, 213902), (247, 129034), (298, 106951), (433, 73606), (494, 64517), (866, 36803), (1937, 16454), (2831, 11258), (3874, 8227), (5629, 5662)]