20199358197

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{953}}^1$

素因数の和:1303

約数の個数: 72

約数和(自身を含む): 32210722440

約数和(自身を除く): 12011364243

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 281, 289, 493, 843, 867, 953, 1479, 2529, 2601, 2859, 4437, 4777, 8149, 8381, 8577, 14331, 16201, 24447, 25143, 27637, 42993, 48603, 73341, 75429, 81209, 82911, 138533, 145809, 243627, 248733, 267793, 275417, 415599, 469829, 730881, 803379, 826251, 1246797, 1409487, 2355061, 2410137, 2478753, 4228461, 4552481, 7065183, 7765997, 7987093, 13657443, 21195549, 23297991, 23961279, 40972329, 69893973, 71883837, 77392177, 132021949, 232176531, 396065847, 696529593, 1188197541, 2244373133, 6733119399, 20199358197]

約数ペア:

[(1, 20199358197), (3, 6733119399), (9, 2244373133), (17, 1188197541), (29, 696529593), (51, 396065847), (87, 232176531), (153, 132021949), (261, 77392177), (281, 71883837), (289, 69893973), (493, 40972329), (843, 23961279), (867, 23297991), (953, 21195549), (1479, 13657443), (2529, 7987093), (2601, 7765997), (2859, 7065183), (4437, 4552481), (4777, 4228461), (8149, 2478753), (8381, 2410137), (8577, 2355061), (14331, 1409487), (16201, 1246797), (24447, 826251), (25143, 803379), (27637, 730881), (42993, 469829), (48603, 415599), (73341, 275417), (75429, 267793), (81209, 248733), (82911, 243627), (138533, 145809)]