21812175

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1259}}^1$

素因数の和:1293

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 26934705

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 33, 35, 45, 55, 63, 75, 77, 99, 105, 165, 175, 225, 231, 275, 315, 385, 495, 525, 693, 825, 1155, 1259, 1575, 1925, 2475, 3465, 3777, 5775, 6295, 8813, 11331, 13849, 17325, 18885, 26439, 31475, 41547, 44065, 56655, 69245, 79317, 94425, 96943, 124641, 132195, 207735, 220325, 283275, 290829, 346225, 396585, 484715, 623205, 660975, 872487, 1038675, 1454145, 1982925, 2423575, 3116025, 4362435, 7270725, 21812175]

約数ペア:

[(1, 21812175), (3, 7270725), (5, 4362435), (7, 3116025), (9, 2423575), (11, 1982925), (15, 1454145), (21, 1038675), (25, 872487), (33, 660975), (35, 623205), (45, 484715), (55, 396585), (63, 346225), (75, 290829), (77, 283275), (99, 220325), (105, 207735), (165, 132195), (175, 124641), (225, 96943), (231, 94425), (275, 79317), (315, 69245), (385, 56655), (495, 44065), (525, 41547), (693, 31475), (825, 26439), (1155, 18885), (1259, 17325), (1575, 13849), (1925, 11331), (2475, 8813), (3465, 6295), (3777, 5775)]