21463450

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 41738400

約数和(自身を除く): 20274950

約数列:

[1, 2, 5, 10, 25, 43, 50, 67, 86, 134, 149, 215, 298, 335, 430, 670, 745, 1075, 1490, 1675, 2150, 2881, 3350, 3725, 5762, 6407, 7450, 9983, 12814, 14405, 19966, 28810, 32035, 49915, 64070, 72025, 99830, 144050, 160175, 249575, 320350, 429269, 499150, 858538, 2146345, 4292690, 10731725, 21463450]

約数ペア:

[(1, 21463450), (2, 10731725), (5, 4292690), (10, 2146345), (25, 858538), (43, 499150), (50, 429269), (67, 320350), (86, 249575), (134, 160175), (149, 144050), (215, 99830), (298, 72025), (335, 64070), (430, 49915), (670, 32035), (745, 28810), (1075, 19966), (1490, 14405), (1675, 12814), (2150, 9983), (2881, 7450), (3350, 6407), (3725, 5762)]