21907050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 144

約数和(自身を含む): 64120896

約数和(自身を除く): 42213846

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 25, 30, 33, 34, 50, 51, 55, 66, 71, 75, 85, 102, 110, 121, 142, 150, 165, 170, 187, 213, 242, 255, 275, 330, 355, 363, 374, 425, 426, 510, 550, 561, 605, 710, 726, 781, 825, 850, 935, 1065, 1122, 1207, 1210, 1275, 1562, 1650, 1775, 1815, 1870, 2057, 2130, 2343, 2414, 2550, 2805, 3025, 3550, 3621, 3630, 3905, 4114, 4675, 4686, 5325, 5610, 6035, 6050, 6171, 7242, 7810, 8591, 9075, 9350, 10285, 10650, 11715, 12070, 12342, 13277, 14025, 17182, 18105, 18150, 19525, 20570, 23430, 25773, 26554, 28050, 30175, 30855, 36210, 39050, 39831, 42955, 51425, 51546, 58575, 60350, 61710, 66385, 79662, 85910, 90525, 102850, 117150, 128865, 132770, 146047, 154275, 181050, 199155, 214775, 257730, 292094, 308550, 331925, 398310, 429550, 438141, 644325, 663850, 730235, 876282, 995775, 1288650, 1460470, 1991550, 2190705, 3651175, 4381410, 7302350, 10953525, 21907050]

約数ペア:

[(1, 21907050), (2, 10953525), (3, 7302350), (5, 4381410), (6, 3651175), (10, 2190705), (11, 1991550), (15, 1460470), (17, 1288650), (22, 995775), (25, 876282), (30, 730235), (33, 663850), (34, 644325), (50, 438141), (51, 429550), (55, 398310), (66, 331925), (71, 308550), (75, 292094), (85, 257730), (102, 214775), (110, 199155), (121, 181050), (142, 154275), (150, 146047), (165, 132770), (170, 128865), (187, 117150), (213, 102850), (242, 90525), (255, 85910), (275, 79662), (330, 66385), (355, 61710), (363, 60350), (374, 58575), (425, 51546), (426, 51425), (510, 42955), (550, 39831), (561, 39050), (605, 36210), (710, 30855), (726, 30175), (781, 28050), (825, 26554), (850, 25773), (935, 23430), (1065, 20570), (1122, 19525), (1207, 18150), (1210, 18105), (1275, 17182), (1562, 14025), (1650, 13277), (1775, 12342), (1815, 12070), (1870, 11715), (2057, 10650), (2130, 10285), (2343, 9350), (2414, 9075), (2550, 8591), (2805, 7810), (3025, 7242), (3550, 6171), (3621, 6050), (3630, 6035), (3905, 5610), (4114, 5325), (4675, 4686)]