20874588

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 57302784

約数和(自身を除く): 36428196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 131, 147, 196, 262, 271, 294, 393, 524, 542, 588, 786, 813, 917, 1084, 1572, 1626, 1834, 1897, 2751, 3252, 3668, 3794, 5502, 5691, 6419, 7588, 11004, 11382, 12838, 13279, 19257, 22764, 25676, 26558, 35501, 38514, 39837, 53116, 71002, 77028, 79674, 106503, 142004, 159348, 213006, 248507, 426012, 497014, 745521, 994028, 1491042, 1739549, 2982084, 3479098, 5218647, 6958196, 10437294, 20874588]

約数ペア:

[(1, 20874588), (2, 10437294), (3, 6958196), (4, 5218647), (6, 3479098), (7, 2982084), (12, 1739549), (14, 1491042), (21, 994028), (28, 745521), (42, 497014), (49, 426012), (84, 248507), (98, 213006), (131, 159348), (147, 142004), (196, 106503), (262, 79674), (271, 77028), (294, 71002), (393, 53116), (524, 39837), (542, 38514), (588, 35501), (786, 26558), (813, 25676), (917, 22764), (1084, 19257), (1572, 13279), (1626, 12838), (1834, 11382), (1897, 11004), (2751, 7588), (3252, 6419), (3668, 5691), (3794, 5502)]