21433335

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{241}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 44030448

約数和(自身を除く): 22597113

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 121, 147, 165, 231, 241, 245, 363, 385, 539, 605, 723, 735, 847, 1155, 1205, 1617, 1687, 1815, 2541, 2651, 2695, 3615, 4235, 5061, 5929, 7953, 8085, 8435, 11809, 12705, 13255, 17787, 18557, 25305, 29161, 29645, 35427, 39765, 55671, 59045, 87483, 88935, 92785, 129899, 145805, 177135, 204127, 278355, 389697, 437415, 612381, 649495, 1020635, 1428889, 1948485, 3061905, 4286667, 7144445, 21433335]

約数ペア:

[(1, 21433335), (3, 7144445), (5, 4286667), (7, 3061905), (11, 1948485), (15, 1428889), (21, 1020635), (33, 649495), (35, 612381), (49, 437415), (55, 389697), (77, 278355), (105, 204127), (121, 177135), (147, 145805), (165, 129899), (231, 92785), (241, 88935), (245, 87483), (363, 59045), (385, 55671), (539, 39765), (605, 35427), (723, 29645), (735, 29161), (847, 25305), (1155, 18557), (1205, 17787), (1617, 13255), (1687, 12705), (1815, 11809), (2541, 8435), (2651, 8085), (2695, 7953), (3615, 5929), (4235, 5061)]