21097907925

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{52453}}^1$

素因数の和:52670

約数の個数: 48

約数和(自身を含む): 36215920128

約数和(自身を除く): 15118012203

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 173, 465, 519, 775, 865, 2325, 2595, 4325, 5363, 12975, 16089, 26815, 52453, 80445, 134075, 157359, 262265, 402225, 786795, 1311325, 1626043, 3933975, 4878129, 8130215, 9074369, 24390645, 27223107, 40651075, 45371845, 121953225, 136115535, 226859225, 281305439, 680577675, 843916317, 1406527195, 4219581585, 7032635975, 21097907925]

約数ペア:

[(1, 21097907925), (3, 7032635975), (5, 4219581585), (15, 1406527195), (25, 843916317), (31, 680577675), (75, 281305439), (93, 226859225), (155, 136115535), (173, 121953225), (465, 45371845), (519, 40651075), (775, 27223107), (865, 24390645), (2325, 9074369), (2595, 8130215), (4325, 4878129), (5363, 3933975), (12975, 1626043), (16089, 1311325), (26815, 786795), (52453, 402225), (80445, 262265), (134075, 157359)]