21109212610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{4253}}^1$

素因数の和:4603

約数の個数: 64

約数和(自身を含む): 40503525120

約数和(自身を除く): 19394312510

約数列:

[1, 2, 5, 10, 19, 38, 95, 151, 173, 190, 302, 346, 755, 865, 1510, 1730, 2869, 3287, 4253, 5738, 6574, 8506, 14345, 16435, 21265, 26123, 28690, 32870, 42530, 52246, 80807, 130615, 161614, 261230, 404035, 496337, 642203, 735769, 808070, 992674, 1284406, 1471538, 2481685, 3211015, 3678845, 4963370, 6422030, 7357690, 12201857, 13979611, 24403714, 27959222, 61009285, 69898055, 111101119, 122018570, 139796110, 222202238, 555505595, 1111011190, 2110921261, 4221842522, 10554606305, 21109212610]

約数ペア:

[(1, 21109212610), (2, 10554606305), (5, 4221842522), (10, 2110921261), (19, 1111011190), (38, 555505595), (95, 222202238), (151, 139796110), (173, 122018570), (190, 111101119), (302, 69898055), (346, 61009285), (755, 27959222), (865, 24403714), (1510, 13979611), (1730, 12201857), (2869, 7357690), (3287, 6422030), (4253, 4963370), (5738, 3678845), (6574, 3211015), (8506, 2481685), (14345, 1471538), (16435, 1284406), (21265, 992674), (26123, 808070), (28690, 735769), (32870, 642203), (42530, 496337), (52246, 404035), (80807, 261230), (130615, 161614)]