21007650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3257}}^1$

素因数の和:3315

約数の個数: 48

約数和(自身を含む): 53326944

約数和(自身を除く): 32319294

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 645, 1075, 1290, 2150, 3225, 3257, 6450, 6514, 9771, 16285, 19542, 32570, 48855, 81425, 97710, 140051, 162850, 244275, 280102, 420153, 488550, 700255, 840306, 1400510, 2100765, 3501275, 4201530, 7002550, 10503825, 21007650]

約数ペア:

[(1, 21007650), (2, 10503825), (3, 7002550), (5, 4201530), (6, 3501275), (10, 2100765), (15, 1400510), (25, 840306), (30, 700255), (43, 488550), (50, 420153), (75, 280102), (86, 244275), (129, 162850), (150, 140051), (215, 97710), (258, 81425), (430, 48855), (645, 32570), (1075, 19542), (1290, 16285), (2150, 9771), (3225, 6514), (3257, 6450)]