21488714

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 37403856

約数和(自身を除く): 15915142

約数列:

[1, 2, 13, 17, 26, 34, 61, 122, 221, 442, 793, 797, 1037, 1586, 1594, 2074, 10361, 13481, 13549, 20722, 26962, 27098, 48617, 97234, 176137, 352274, 632021, 826489, 1264042, 1652978, 10744357, 21488714]

約数ペア:

[(1, 21488714), (2, 10744357), (13, 1652978), (17, 1264042), (26, 826489), (34, 632021), (61, 352274), (122, 176137), (221, 97234), (442, 48617), (793, 27098), (797, 26962), (1037, 20722), (1586, 13549), (1594, 13481), (2074, 10361)]