21975525

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 46309536

約数和(自身を除く): 24334011

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 33, 39, 45, 55, 65, 75, 99, 117, 143, 165, 195, 225, 275, 325, 429, 495, 585, 683, 715, 825, 975, 1287, 2049, 2145, 2475, 2925, 3415, 3575, 6147, 6435, 7513, 8879, 10245, 10725, 17075, 22539, 26637, 30735, 32175, 37565, 44395, 51225, 67617, 79911, 97669, 112695, 133185, 153675, 187825, 221975, 293007, 338085, 399555, 488345, 563475, 665925, 879021, 1465035, 1690425, 1997775, 2441725, 4395105, 7325175, 21975525]

約数ペア:

[(1, 21975525), (3, 7325175), (5, 4395105), (9, 2441725), (11, 1997775), (13, 1690425), (15, 1465035), (25, 879021), (33, 665925), (39, 563475), (45, 488345), (55, 399555), (65, 338085), (75, 293007), (99, 221975), (117, 187825), (143, 153675), (165, 133185), (195, 112695), (225, 97669), (275, 79911), (325, 67617), (429, 51225), (495, 44395), (585, 37565), (683, 32175), (715, 30735), (825, 26637), (975, 22539), (1287, 17075), (2049, 10725), (2145, 10245), (2475, 8879), (2925, 7513), (3415, 6435), (3575, 6147)]