21434520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178621}}^1$

素因数の和:178635

約数の個数: 32

約数和(自身を含む): 64303920

約数和(自身を除く): 42869400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178621, 357242, 535863, 714484, 893105, 1071726, 1428968, 1786210, 2143452, 2679315, 3572420, 4286904, 5358630, 7144840, 10717260, 21434520]

約数ペア:

[(1, 21434520), (2, 10717260), (3, 7144840), (4, 5358630), (5, 4286904), (6, 3572420), (8, 2679315), (10, 2143452), (12, 1786210), (15, 1428968), (20, 1071726), (24, 893105), (30, 714484), (40, 535863), (60, 357242), (120, 178621)]