21417720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178481}}^1$

素因数の和:178495

約数の個数: 32

約数和(自身を含む): 64253520

約数和(自身を除く): 42835800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178481, 356962, 535443, 713924, 892405, 1070886, 1427848, 1784810, 2141772, 2677215, 3569620, 4283544, 5354430, 7139240, 10708860, 21417720]

約数ペア:

[(1, 21417720), (2, 10708860), (3, 7139240), (4, 5354430), (5, 4283544), (6, 3569620), (8, 2677215), (10, 2141772), (12, 1784810), (15, 1427848), (20, 1070886), (24, 892405), (30, 713924), (40, 535443), (60, 356962), (120, 178481)]