21692290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 19079870

約数列:

[1, 2, 5, 10, 29, 58, 131, 145, 262, 290, 571, 655, 1142, 1310, 2855, 3799, 5710, 7598, 16559, 18995, 33118, 37990, 74801, 82795, 149602, 165590, 374005, 748010, 2169229, 4338458, 10846145, 21692290]

約数ペア:

[(1, 21692290), (2, 10846145), (5, 4338458), (10, 2169229), (29, 748010), (58, 374005), (131, 165590), (145, 149602), (262, 82795), (290, 74801), (571, 37990), (655, 33118), (1142, 18995), (1310, 16559), (2855, 7598), (3799, 5710)]