21889490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26010670

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 41, 58, 70, 82, 145, 203, 205, 263, 287, 290, 406, 410, 526, 574, 1015, 1189, 1315, 1435, 1841, 2030, 2378, 2630, 2870, 3682, 5945, 7627, 8323, 9205, 10783, 11890, 15254, 16646, 18410, 21566, 38135, 41615, 53389, 53915, 75481, 76270, 83230, 106778, 107830, 150962, 266945, 312707, 377405, 533890, 625414, 754810, 1563535, 2188949, 3127070, 4377898, 10944745, 21889490]

約数ペア:

[(1, 21889490), (2, 10944745), (5, 4377898), (7, 3127070), (10, 2188949), (14, 1563535), (29, 754810), (35, 625414), (41, 533890), (58, 377405), (70, 312707), (82, 266945), (145, 150962), (203, 107830), (205, 106778), (263, 83230), (287, 76270), (290, 75481), (406, 53915), (410, 53389), (526, 41615), (574, 38135), (1015, 21566), (1189, 18410), (1315, 16646), (1435, 15254), (1841, 11890), (2030, 10783), (2378, 9205), (2630, 8323), (2870, 7627), (3682, 5945)]