19979996

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2731}}^1$

素因数の和:2825

約数の個数: 24

約数和(自身を含む): 36718080

約数和(自身を除く): 16738084

約数列:

[1, 2, 4, 31, 59, 62, 118, 124, 236, 1829, 2731, 3658, 5462, 7316, 10924, 84661, 161129, 169322, 322258, 338644, 644516, 4994999, 9989998, 19979996]

約数ペア:

[(1, 19979996), (2, 9989998), (4, 4994999), (31, 644516), (59, 338644), (62, 322258), (118, 169322), (124, 161129), (236, 84661), (1829, 10924), (2731, 7316), (3658, 5462)]