21861235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 30730752

約数和(自身を除く): 8869517

約数列:

[1, 5, 11, 17, 55, 85, 103, 187, 227, 515, 935, 1133, 1135, 1751, 2497, 3859, 5665, 8755, 12485, 19261, 19295, 23381, 42449, 96305, 116905, 212245, 257191, 397477, 1285955, 1987385, 4372247, 21861235]

約数ペア:

[(1, 21861235), (5, 4372247), (11, 1987385), (17, 1285955), (55, 397477), (85, 257191), (103, 212245), (187, 116905), (227, 96305), (515, 42449), (935, 23381), (1133, 19295), (1135, 19261), (1751, 12485), (2497, 8755), (3859, 5665)]