21839090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 49061376

約数和(自身を除く): 27222286

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 103, 130, 182, 206, 233, 455, 466, 515, 721, 910, 1030, 1165, 1339, 1442, 1631, 2330, 2678, 3029, 3262, 3605, 6058, 6695, 7210, 8155, 9373, 13390, 15145, 16310, 18746, 21203, 23999, 30290, 42406, 46865, 47998, 93730, 106015, 119995, 167993, 212030, 239990, 311987, 335986, 623974, 839965, 1559935, 1679930, 2183909, 3119870, 4367818, 10919545, 21839090]

約数ペア:

[(1, 21839090), (2, 10919545), (5, 4367818), (7, 3119870), (10, 2183909), (13, 1679930), (14, 1559935), (26, 839965), (35, 623974), (65, 335986), (70, 311987), (91, 239990), (103, 212030), (130, 167993), (182, 119995), (206, 106015), (233, 93730), (455, 47998), (466, 46865), (515, 42406), (721, 30290), (910, 23999), (1030, 21203), (1165, 18746), (1339, 16310), (1442, 15145), (1631, 13390), (2330, 9373), (2678, 8155), (3029, 7210), (3262, 6695), (3605, 6058)]