19990628

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3517}}^1$

素因数の和:3564

約数の個数: 36

約数和(自身を含む): 42110460

約数和(自身を除く): 22119832

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3517, 5684, 7034, 14068, 24619, 49238, 98476, 101993, 172333, 203986, 344666, 407972, 689332, 713951, 1427902, 2855804, 4997657, 9995314, 19990628]

約数ペア:

[(1, 19990628), (2, 9995314), (4, 4997657), (7, 2855804), (14, 1427902), (28, 713951), (29, 689332), (49, 407972), (58, 344666), (98, 203986), (116, 172333), (196, 101993), (203, 98476), (406, 49238), (812, 24619), (1421, 14068), (2842, 7034), (3517, 5684)]