21953460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21523}}^1$

素因数の和:21552

約数の個数: 48

約数和(自身を含む): 65088576

約数和(自身を除く): 43135116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21523, 43046, 64569, 86092, 107615, 129138, 215230, 258276, 322845, 365891, 430460, 645690, 731782, 1097673, 1291380, 1463564, 1829455, 2195346, 3658910, 4390692, 5488365, 7317820, 10976730, 21953460]

約数ペア:

[(1, 21953460), (2, 10976730), (3, 7317820), (4, 5488365), (5, 4390692), (6, 3658910), (10, 2195346), (12, 1829455), (15, 1463564), (17, 1291380), (20, 1097673), (30, 731782), (34, 645690), (51, 430460), (60, 365891), (68, 322845), (85, 258276), (102, 215230), (170, 129138), (204, 107615), (255, 86092), (340, 64569), (510, 43046), (1020, 21523)]