21931440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{91381}}^1$

素因数の和:91397

約数の個数: 40

約数和(自身を含む): 67988208

約数和(自身を除く): 46056768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 91381, 182762, 274143, 365524, 456905, 548286, 731048, 913810, 1096572, 1370715, 1462096, 1827620, 2193144, 2741430, 3655240, 4386288, 5482860, 7310480, 10965720, 21931440]

約数ペア:

[(1, 21931440), (2, 10965720), (3, 7310480), (4, 5482860), (5, 4386288), (6, 3655240), (8, 2741430), (10, 2193144), (12, 1827620), (15, 1462096), (16, 1370715), (20, 1096572), (24, 913810), (30, 731048), (40, 548286), (48, 456905), (60, 365524), (80, 274143), (120, 182762), (240, 91381)]