21101350

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 20681690

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 59, 115, 118, 230, 295, 311, 575, 590, 622, 1150, 1357, 1475, 1555, 2714, 2950, 3110, 6785, 7153, 7775, 13570, 14306, 15550, 18349, 33925, 35765, 36698, 67850, 71530, 91745, 178825, 183490, 357650, 422027, 458725, 844054, 917450, 2110135, 4220270, 10550675, 21101350]

約数ペア:

[(1, 21101350), (2, 10550675), (5, 4220270), (10, 2110135), (23, 917450), (25, 844054), (46, 458725), (50, 422027), (59, 357650), (115, 183490), (118, 178825), (230, 91745), (295, 71530), (311, 67850), (575, 36698), (590, 35765), (622, 33925), (1150, 18349), (1357, 15550), (1475, 14306), (1555, 13570), (2714, 7775), (2950, 7153), (3110, 6785)]