21816406

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 35970912

約数和(自身を除く): 14154506

約数列:

[1, 2, 17, 34, 61, 67, 122, 134, 157, 314, 1037, 1139, 2074, 2278, 2669, 4087, 5338, 8174, 9577, 10519, 19154, 21038, 69479, 138958, 162809, 178823, 325618, 357646, 641659, 1283318, 10908203, 21816406]

約数ペア:

[(1, 21816406), (2, 10908203), (17, 1283318), (34, 641659), (61, 357646), (67, 325618), (122, 178823), (134, 162809), (157, 138958), (314, 69479), (1037, 21038), (1139, 19154), (2074, 10519), (2278, 9577), (2669, 8174), (4087, 5338)]