20754195

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 44914176

約数和(自身を除く): 24159981

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 49, 51, 55, 77, 85, 105, 119, 147, 151, 165, 187, 231, 245, 255, 357, 385, 453, 539, 561, 595, 735, 755, 833, 935, 1057, 1155, 1309, 1617, 1661, 1785, 2265, 2499, 2567, 2695, 2805, 3171, 3927, 4165, 4983, 5285, 6545, 7399, 7701, 8085, 8305, 9163, 11627, 12495, 12835, 15855, 17969, 19635, 22197, 24915, 27489, 28237, 34881, 36995, 38505, 45815, 53907, 58135, 81389, 84711, 89845, 110985, 125783, 137445, 141185, 174405, 197659, 244167, 269535, 377349, 406945, 423555, 592977, 628915, 988295, 1220835, 1383613, 1886745, 2964885, 4150839, 6918065, 20754195]

約数ペア:

[(1, 20754195), (3, 6918065), (5, 4150839), (7, 2964885), (11, 1886745), (15, 1383613), (17, 1220835), (21, 988295), (33, 628915), (35, 592977), (49, 423555), (51, 406945), (55, 377349), (77, 269535), (85, 244167), (105, 197659), (119, 174405), (147, 141185), (151, 137445), (165, 125783), (187, 110985), (231, 89845), (245, 84711), (255, 81389), (357, 58135), (385, 53907), (453, 45815), (539, 38505), (561, 36995), (595, 34881), (735, 28237), (755, 27489), (833, 24915), (935, 22197), (1057, 19635), (1155, 17969), (1309, 15855), (1617, 12835), (1661, 12495), (1785, 11627), (2265, 9163), (2499, 8305), (2567, 8085), (2695, 7701), (2805, 7399), (3171, 6545), (3927, 5285), (4165, 4983)]