21767735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 31186944

約数和(自身を除く): 9419209

約数列:

[1, 5, 11, 17, 31, 55, 85, 155, 187, 341, 527, 751, 935, 1705, 2635, 3755, 5797, 8261, 12767, 23281, 28985, 41305, 63835, 116405, 140437, 256091, 395777, 702185, 1280455, 1978885, 4353547, 21767735]

約数ペア:

[(1, 21767735), (5, 4353547), (11, 1978885), (17, 1280455), (31, 702185), (55, 395777), (85, 256091), (155, 140437), (187, 116405), (341, 63835), (527, 41305), (751, 28985), (935, 23281), (1705, 12767), (2635, 8261), (3755, 5797)]