21358320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88993}}^1$

素因数の和:89009

約数の個数: 40

約数和(自身を含む): 66211536

約数和(自身を除く): 44853216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88993, 177986, 266979, 355972, 444965, 533958, 711944, 889930, 1067916, 1334895, 1423888, 1779860, 2135832, 2669790, 3559720, 4271664, 5339580, 7119440, 10679160, 21358320]

約数ペア:

[(1, 21358320), (2, 10679160), (3, 7119440), (4, 5339580), (5, 4271664), (6, 3559720), (8, 2669790), (10, 2135832), (12, 1779860), (15, 1423888), (16, 1334895), (20, 1067916), (24, 889930), (30, 711944), (40, 533958), (48, 444965), (60, 355972), (80, 266979), (120, 177986), (240, 88993)]