21441720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178681}}^1$

素因数の和:178695

約数の個数: 32

約数和(自身を含む): 64325520

約数和(自身を除く): 42883800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178681, 357362, 536043, 714724, 893405, 1072086, 1429448, 1786810, 2144172, 2680215, 3573620, 4288344, 5360430, 7147240, 10720860, 21441720]

約数ペア:

[(1, 21441720), (2, 10720860), (3, 7147240), (4, 5360430), (5, 4288344), (6, 3573620), (8, 2680215), (10, 2144172), (12, 1786810), (15, 1429448), (20, 1072086), (24, 893405), (30, 714724), (40, 536043), (60, 357362), (120, 178681)]