20161799994

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{137983}}^1$

素因数の和:138080

約数の個数: 64

約数和(自身を含む): 47687270400

約数和(自身を除く): 27525470406

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 142, 147, 213, 294, 343, 426, 497, 686, 994, 1029, 1491, 2058, 2982, 3479, 6958, 10437, 20874, 24353, 48706, 73059, 137983, 146118, 275966, 413949, 827898, 965881, 1931762, 2897643, 5795286, 6761167, 9796793, 13522334, 19593586, 20283501, 29390379, 40567002, 47328169, 58780758, 68577551, 94656338, 137155102, 141984507, 205732653, 283969014, 411465306, 480042857, 960085714, 1440128571, 2880257142, 3360299999, 6720599998, 10080899997, 20161799994]

約数ペア:

[(1, 20161799994), (2, 10080899997), (3, 6720599998), (6, 3360299999), (7, 2880257142), (14, 1440128571), (21, 960085714), (42, 480042857), (49, 411465306), (71, 283969014), (98, 205732653), (142, 141984507), (147, 137155102), (213, 94656338), (294, 68577551), (343, 58780758), (426, 47328169), (497, 40567002), (686, 29390379), (994, 20283501), (1029, 19593586), (1491, 13522334), (2058, 9796793), (2982, 6761167), (3479, 5795286), (6958, 2897643), (10437, 1931762), (20874, 965881), (24353, 827898), (48706, 413949), (73059, 275966), (137983, 146118)]