21431856

素因数分解:

$2^4\times 3^1\times {\mathrm{521}}^1\times {\mathrm{857}}^1$

素因数の和:1389

約数の個数: 40

約数和(自身を含む): 55536624

約数和(自身を除く): 34104768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 521, 857, 1042, 1563, 1714, 2084, 2571, 3126, 3428, 4168, 5142, 6252, 6856, 8336, 10284, 12504, 13712, 20568, 25008, 41136, 446497, 892994, 1339491, 1785988, 2678982, 3571976, 5357964, 7143952, 10715928, 21431856]

約数ペア:

[(1, 21431856), (2, 10715928), (3, 7143952), (4, 5357964), (6, 3571976), (8, 2678982), (12, 1785988), (16, 1339491), (24, 892994), (48, 446497), (521, 41136), (857, 25008), (1042, 20568), (1563, 13712), (1714, 12504), (2084, 10284), (2571, 8336), (3126, 6856), (3428, 6252), (4168, 5142)]