20519458

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2381}}^1$

素因数の和:2553

約数の個数: 16

約数和(自身を含む): 32014080

約数和(自身を除く): 11494622

約数列:

[1, 2, 31, 62, 139, 278, 2381, 4309, 4762, 8618, 73811, 147622, 330959, 661918, 10259729, 20519458]

約数ペア:

[(1, 20519458), (2, 10259729), (31, 661918), (62, 330959), (139, 147622), (278, 73811), (2381, 8618), (4309, 4762)]