21188464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{919}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 45175680

約数和(自身を除く): 23987216

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 919, 1048, 1441, 1838, 2096, 2882, 3676, 5764, 7352, 10109, 11528, 14704, 20218, 23056, 40436, 80872, 120389, 161744, 240778, 481556, 963112, 1324279, 1926224, 2648558, 5297116, 10594232, 21188464]

約数ペア:

[(1, 21188464), (2, 10594232), (4, 5297116), (8, 2648558), (11, 1926224), (16, 1324279), (22, 963112), (44, 481556), (88, 240778), (131, 161744), (176, 120389), (262, 80872), (524, 40436), (919, 23056), (1048, 20218), (1441, 14704), (1838, 11528), (2096, 10109), (2882, 7352), (3676, 5764)]