20603716

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3391}}^1$

素因数の和:3440

約数の個数: 36

約数和(自身を含む): 43309056

約数和(自身を除く): 22705340

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3391, 6076, 6782, 13564, 23737, 47474, 94948, 105121, 166159, 210242, 332318, 420484, 664636, 735847, 1471694, 2943388, 5150929, 10301858, 20603716]

約数ペア:

[(1, 20603716), (2, 10301858), (4, 5150929), (7, 2943388), (14, 1471694), (28, 735847), (31, 664636), (49, 420484), (62, 332318), (98, 210242), (124, 166159), (196, 105121), (217, 94948), (434, 47474), (868, 23737), (1519, 13564), (3038, 6782), (3391, 6076)]