21267675

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:701

約数の個数: 72

約数和(自身を含む): 44820048

約数和(自身を除く): 23552373

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, 661, 715, 825, 975, 1287, 1983, 2145, 2475, 2925, 3305, 3575, 5949, 6435, 7271, 8593, 9915, 10725, 16525, 21813, 25779, 29745, 32175, 36355, 42965, 49575, 65439, 77337, 94523, 109065, 128895, 148725, 181775, 214825, 283569, 327195, 386685, 472615, 545325, 644475, 850707, 1417845, 1635975, 1933425, 2363075, 4253535, 7089225, 21267675]

約数ペア:

[(1, 21267675), (3, 7089225), (5, 4253535), (9, 2363075), (11, 1933425), (13, 1635975), (15, 1417845), (25, 850707), (33, 644475), (39, 545325), (45, 472615), (55, 386685), (65, 327195), (75, 283569), (99, 214825), (117, 181775), (143, 148725), (165, 128895), (195, 109065), (225, 94523), (275, 77337), (325, 65439), (429, 49575), (495, 42965), (585, 36355), (661, 32175), (715, 29745), (825, 25779), (975, 21813), (1287, 16525), (1983, 10725), (2145, 9915), (2475, 8593), (2925, 7271), (3305, 6435), (3575, 5949)]