21117420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117319}}^1$

素因数の和:117334

約数の個数: 36

約数和(自身を含む): 64056720

約数和(自身を除く): 42939300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117319, 234638, 351957, 469276, 586595, 703914, 1055871, 1173190, 1407828, 1759785, 2111742, 2346380, 3519570, 4223484, 5279355, 7039140, 10558710, 21117420]

約数ペア:

[(1, 21117420), (2, 10558710), (3, 7039140), (4, 5279355), (5, 4223484), (6, 3519570), (9, 2346380), (10, 2111742), (12, 1759785), (15, 1407828), (18, 1173190), (20, 1055871), (30, 703914), (36, 586595), (45, 469276), (60, 351957), (90, 234638), (180, 117319)]