21780150

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{20743}}^1$

素因数の和:20765

約数の個数: 48

約数和(自身を含む): 61734144

約数和(自身を除く): 39953994

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050, 20743, 41486, 62229, 103715, 124458, 145201, 207430, 290402, 311145, 435603, 518575, 622290, 726005, 871206, 1037150, 1452010, 1555725, 2178015, 3111450, 3630025, 4356030, 7260050, 10890075, 21780150]

約数ペア:

[(1, 21780150), (2, 10890075), (3, 7260050), (5, 4356030), (6, 3630025), (7, 3111450), (10, 2178015), (14, 1555725), (15, 1452010), (21, 1037150), (25, 871206), (30, 726005), (35, 622290), (42, 518575), (50, 435603), (70, 311145), (75, 290402), (105, 207430), (150, 145201), (175, 124458), (210, 103715), (350, 62229), (525, 41486), (1050, 20743)]