21435330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1111

約数の個数: 64

約数和(自身を含む): 59424768

約数和(自身を除く): 37989438

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 103, 105, 206, 210, 309, 515, 618, 721, 991, 1030, 1442, 1545, 1982, 2163, 2973, 3090, 3605, 4326, 4955, 5946, 6937, 7210, 9910, 10815, 13874, 14865, 20811, 21630, 29730, 34685, 41622, 69370, 102073, 104055, 204146, 208110, 306219, 510365, 612438, 714511, 1020730, 1429022, 1531095, 2143533, 3062190, 3572555, 4287066, 7145110, 10717665, 21435330]

約数ペア:

[(1, 21435330), (2, 10717665), (3, 7145110), (5, 4287066), (6, 3572555), (7, 3062190), (10, 2143533), (14, 1531095), (15, 1429022), (21, 1020730), (30, 714511), (35, 612438), (42, 510365), (70, 306219), (103, 208110), (105, 204146), (206, 104055), (210, 102073), (309, 69370), (515, 41622), (618, 34685), (721, 29730), (991, 21630), (1030, 20811), (1442, 14865), (1545, 13874), (1982, 10815), (2163, 9910), (2973, 7210), (3090, 6937), (3605, 5946), (4326, 4955)]