21809744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1493}}^1$

素因数の和:1595

約数の個数: 40

約数和(自身を含む): 46684512

約数和(自身を除く): 24874768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1493, 1826, 2986, 3652, 5972, 7304, 11944, 14608, 16423, 23888, 32846, 65692, 123919, 131384, 247838, 262768, 495676, 991352, 1363109, 1982704, 2726218, 5452436, 10904872, 21809744]

約数ペア:

[(1, 21809744), (2, 10904872), (4, 5452436), (8, 2726218), (11, 1982704), (16, 1363109), (22, 991352), (44, 495676), (83, 262768), (88, 247838), (166, 131384), (176, 123919), (332, 65692), (664, 32846), (913, 23888), (1328, 16423), (1493, 14608), (1826, 11944), (2986, 7304), (3652, 5972)]