21074830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 24452210

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 79, 103, 158, 185, 206, 259, 370, 395, 515, 518, 553, 721, 790, 1030, 1106, 1295, 1442, 2590, 2765, 2923, 3605, 3811, 5530, 5846, 7210, 7622, 8137, 14615, 16274, 19055, 20461, 26677, 29230, 38110, 40685, 40922, 53354, 56959, 81370, 102305, 113918, 133385, 204610, 266770, 284795, 301069, 569590, 602138, 1505345, 2107483, 3010690, 4214966, 10537415, 21074830]

約数ペア:

[(1, 21074830), (2, 10537415), (5, 4214966), (7, 3010690), (10, 2107483), (14, 1505345), (35, 602138), (37, 569590), (70, 301069), (74, 284795), (79, 266770), (103, 204610), (158, 133385), (185, 113918), (206, 102305), (259, 81370), (370, 56959), (395, 53354), (515, 40922), (518, 40685), (553, 38110), (721, 29230), (790, 26677), (1030, 20461), (1106, 19055), (1295, 16274), (1442, 14615), (2590, 8137), (2765, 7622), (2923, 7210), (3605, 5846), (3811, 5530)]