19741744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{503}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 41997312

約数和(自身を除く): 22255568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 223, 446, 503, 892, 1006, 1784, 2012, 2453, 3568, 4024, 4906, 5533, 8048, 9812, 11066, 19624, 22132, 39248, 44264, 88528, 112169, 224338, 448676, 897352, 1233859, 1794704, 2467718, 4935436, 9870872, 19741744]

約数ペア:

[(1, 19741744), (2, 9870872), (4, 4935436), (8, 2467718), (11, 1794704), (16, 1233859), (22, 897352), (44, 448676), (88, 224338), (176, 112169), (223, 88528), (446, 44264), (503, 39248), (892, 22132), (1006, 19624), (1784, 11066), (2012, 9812), (2453, 8048), (3568, 5533), (4024, 4906)]