21123780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1511}}^1$

素因数の和:1756

約数の個数: 48

約数和(自身を含む): 59439744

約数和(自身を除く): 38315964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 233, 466, 699, 932, 1165, 1398, 1511, 2330, 2796, 3022, 3495, 4533, 4660, 6044, 6990, 7555, 9066, 13980, 15110, 18132, 22665, 30220, 45330, 90660, 352063, 704126, 1056189, 1408252, 1760315, 2112378, 3520630, 4224756, 5280945, 7041260, 10561890, 21123780]

約数ペア:

[(1, 21123780), (2, 10561890), (3, 7041260), (4, 5280945), (5, 4224756), (6, 3520630), (10, 2112378), (12, 1760315), (15, 1408252), (20, 1056189), (30, 704126), (60, 352063), (233, 90660), (466, 45330), (699, 30220), (932, 22665), (1165, 18132), (1398, 15110), (1511, 13980), (2330, 9066), (2796, 7555), (3022, 6990), (3495, 6044), (4533, 4660)]