21141690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31942470

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 127, 155, 179, 186, 254, 310, 358, 381, 465, 537, 635, 762, 895, 930, 1074, 1270, 1790, 1905, 2685, 3810, 3937, 5370, 5549, 7874, 11098, 11811, 16647, 19685, 22733, 23622, 27745, 33294, 39370, 45466, 55490, 59055, 68199, 83235, 113665, 118110, 136398, 166470, 227330, 340995, 681990, 704723, 1409446, 2114169, 3523615, 4228338, 7047230, 10570845, 21141690]

約数ペア:

[(1, 21141690), (2, 10570845), (3, 7047230), (5, 4228338), (6, 3523615), (10, 2114169), (15, 1409446), (30, 704723), (31, 681990), (62, 340995), (93, 227330), (127, 166470), (155, 136398), (179, 118110), (186, 113665), (254, 83235), (310, 68199), (358, 59055), (381, 55490), (465, 45466), (537, 39370), (635, 33294), (762, 27745), (895, 23622), (930, 22733), (1074, 19685), (1270, 16647), (1790, 11811), (1905, 11098), (2685, 7874), (3810, 5549), (3937, 5370)]