21320100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23689}}^1$

素因数の和:23709

約数の個数: 54

約数和(自身を含む): 66829490

約数和(自身を除く): 45509390

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23689, 47378, 71067, 94756, 118445, 142134, 213201, 236890, 284268, 355335, 426402, 473780, 592225, 710670, 852804, 1066005, 1184450, 1421340, 1776675, 2132010, 2368900, 3553350, 4264020, 5330025, 7106700, 10660050, 21320100]

約数ペア:

[(1, 21320100), (2, 10660050), (3, 7106700), (4, 5330025), (5, 4264020), (6, 3553350), (9, 2368900), (10, 2132010), (12, 1776675), (15, 1421340), (18, 1184450), (20, 1066005), (25, 852804), (30, 710670), (36, 592225), (45, 473780), (50, 426402), (60, 355335), (75, 284268), (90, 236890), (100, 213201), (150, 142134), (180, 118445), (225, 94756), (300, 71067), (450, 47378), (900, 23689)]