21455590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1093}}^1$

素因数の和:1264

約数の個数: 32

約数和(自身を含む): 41904576

約数和(自身を除く): 20448986

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151, 302, 755, 1093, 1510, 1963, 2186, 3926, 5465, 9815, 10930, 14209, 19630, 28418, 71045, 142090, 165043, 330086, 825215, 1650430, 2145559, 4291118, 10727795, 21455590]

約数ペア:

[(1, 21455590), (2, 10727795), (5, 4291118), (10, 2145559), (13, 1650430), (26, 825215), (65, 330086), (130, 165043), (151, 142090), (302, 71045), (755, 28418), (1093, 19630), (1510, 14209), (1963, 10930), (2186, 9815), (3926, 5465)]