21752775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:102

約数の個数: 108

約数和(自身を含む): 46309536

約数和(自身を除く): 24556761

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 47, 51, 55, 75, 85, 99, 121, 141, 153, 165, 187, 225, 235, 255, 275, 363, 423, 425, 495, 517, 561, 605, 705, 765, 799, 825, 935, 1089, 1175, 1275, 1551, 1683, 1815, 2057, 2115, 2397, 2475, 2585, 2805, 3025, 3525, 3825, 3995, 4653, 4675, 5445, 5687, 6171, 7191, 7755, 8415, 8789, 9075, 10285, 10575, 11985, 12925, 14025, 17061, 18513, 19975, 23265, 26367, 27225, 28435, 30855, 35955, 38775, 42075, 43945, 51183, 51425, 59925, 79101, 85305, 92565, 96679, 116325, 131835, 142175, 154275, 179775, 219725, 255915, 290037, 395505, 426525, 462825, 483395, 659175, 870111, 1279575, 1450185, 1977525, 2416975, 4350555, 7250925, 21752775]

約数ペア:

[(1, 21752775), (3, 7250925), (5, 4350555), (9, 2416975), (11, 1977525), (15, 1450185), (17, 1279575), (25, 870111), (33, 659175), (45, 483395), (47, 462825), (51, 426525), (55, 395505), (75, 290037), (85, 255915), (99, 219725), (121, 179775), (141, 154275), (153, 142175), (165, 131835), (187, 116325), (225, 96679), (235, 92565), (255, 85305), (275, 79101), (363, 59925), (423, 51425), (425, 51183), (495, 43945), (517, 42075), (561, 38775), (605, 35955), (705, 30855), (765, 28435), (799, 27225), (825, 26367), (935, 23265), (1089, 19975), (1175, 18513), (1275, 17061), (1551, 14025), (1683, 12925), (1815, 11985), (2057, 10575), (2115, 10285), (2397, 9075), (2475, 8789), (2585, 8415), (2805, 7755), (3025, 7191), (3525, 6171), (3825, 5687), (3995, 5445), (4653, 4675)]