20472386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 38776320

約数和(自身を除く): 18303934

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 43, 67, 86, 134, 187, 209, 323, 374, 418, 473, 646, 731, 737, 817, 946, 1139, 1273, 1462, 1474, 1634, 2278, 2546, 2881, 3553, 5762, 7106, 8041, 8987, 12529, 13889, 14003, 16082, 17974, 21641, 25058, 27778, 28006, 31691, 43282, 48977, 54739, 63382, 97954, 109478, 152779, 238051, 305558, 476102, 538747, 602129, 930563, 1077494, 1204258, 1861126, 10236193, 20472386]

約数ペア:

[(1, 20472386), (2, 10236193), (11, 1861126), (17, 1204258), (19, 1077494), (22, 930563), (34, 602129), (38, 538747), (43, 476102), (67, 305558), (86, 238051), (134, 152779), (187, 109478), (209, 97954), (323, 63382), (374, 54739), (418, 48977), (473, 43282), (646, 31691), (731, 28006), (737, 27778), (817, 25058), (946, 21641), (1139, 17974), (1273, 16082), (1462, 14003), (1474, 13889), (1634, 12529), (2278, 8987), (2546, 8041), (2881, 7106), (3553, 5762)]