21300780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3257}}^1$

素因数の和:3378

約数の個数: 48

約数和(自身を含む): 60207840

約数和(自身を除く): 38907060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3257, 3270, 6514, 6540, 9771, 13028, 16285, 19542, 32570, 39084, 48855, 65140, 97710, 195420, 355013, 710026, 1065039, 1420052, 1775065, 2130078, 3550130, 4260156, 5325195, 7100260, 10650390, 21300780]

約数ペア:

[(1, 21300780), (2, 10650390), (3, 7100260), (4, 5325195), (5, 4260156), (6, 3550130), (10, 2130078), (12, 1775065), (15, 1420052), (20, 1065039), (30, 710026), (60, 355013), (109, 195420), (218, 97710), (327, 65140), (436, 48855), (545, 39084), (654, 32570), (1090, 19542), (1308, 16285), (1635, 13028), (2180, 9771), (3257, 6540), (3270, 6514)]