20491548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 96

約数和(自身を含む): 60684288

約数和(自身を除く): 40192740

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 67, 77, 84, 132, 134, 154, 201, 231, 268, 308, 331, 402, 462, 469, 662, 737, 804, 924, 938, 993, 1324, 1407, 1474, 1876, 1986, 2211, 2317, 2814, 2948, 3641, 3972, 4422, 4634, 5159, 5628, 6951, 7282, 8844, 9268, 10318, 10923, 13902, 14564, 15477, 20636, 21846, 22177, 25487, 27804, 30954, 43692, 44354, 50974, 61908, 66531, 76461, 88708, 101948, 133062, 152922, 155239, 243947, 266124, 305844, 310478, 465717, 487894, 620956, 731841, 931434, 975788, 1463682, 1707629, 1862868, 2927364, 3415258, 5122887, 6830516, 10245774, 20491548]

約数ペア:

[(1, 20491548), (2, 10245774), (3, 6830516), (4, 5122887), (6, 3415258), (7, 2927364), (11, 1862868), (12, 1707629), (14, 1463682), (21, 975788), (22, 931434), (28, 731841), (33, 620956), (42, 487894), (44, 465717), (66, 310478), (67, 305844), (77, 266124), (84, 243947), (132, 155239), (134, 152922), (154, 133062), (201, 101948), (231, 88708), (268, 76461), (308, 66531), (331, 61908), (402, 50974), (462, 44354), (469, 43692), (662, 30954), (737, 27804), (804, 25487), (924, 22177), (938, 21846), (993, 20636), (1324, 15477), (1407, 14564), (1474, 13902), (1876, 10923), (1986, 10318), (2211, 9268), (2317, 8844), (2814, 7282), (2948, 6951), (3641, 5628), (3972, 5159), (4422, 4634)]