20912304

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:698

約数の個数: 80

約数和(自身を含む): 62416640

約数和(自身を除く): 41504336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 109, 112, 168, 218, 327, 336, 436, 571, 654, 763, 872, 1142, 1308, 1526, 1713, 1744, 2284, 2289, 2616, 3052, 3426, 3997, 4568, 4578, 5232, 6104, 6852, 7994, 9136, 9156, 11991, 12208, 13704, 15988, 18312, 23982, 27408, 31976, 36624, 47964, 62239, 63952, 95928, 124478, 186717, 191856, 248956, 373434, 435673, 497912, 746868, 871346, 995824, 1307019, 1493736, 1742692, 2614038, 2987472, 3485384, 5228076, 6970768, 10456152, 20912304]

約数ペア:

[(1, 20912304), (2, 10456152), (3, 6970768), (4, 5228076), (6, 3485384), (7, 2987472), (8, 2614038), (12, 1742692), (14, 1493736), (16, 1307019), (21, 995824), (24, 871346), (28, 746868), (42, 497912), (48, 435673), (56, 373434), (84, 248956), (109, 191856), (112, 186717), (168, 124478), (218, 95928), (327, 63952), (336, 62239), (436, 47964), (571, 36624), (654, 31976), (763, 27408), (872, 23982), (1142, 18312), (1308, 15988), (1526, 13704), (1713, 12208), (1744, 11991), (2284, 9156), (2289, 9136), (2616, 7994), (3052, 6852), (3426, 6104), (3997, 5232), (4568, 4578)]