20557012

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2273}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 45843840

約数和(自身を除く): 25286828

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 2261, 2273, 4522, 4546, 9044, 9092, 15911, 31822, 38641, 43187, 63644, 77282, 86374, 154564, 172748, 270487, 302309, 540974, 604618, 734179, 1081948, 1209236, 1468358, 2936716, 5139253, 10278506, 20557012]

約数ペア:

[(1, 20557012), (2, 10278506), (4, 5139253), (7, 2936716), (14, 1468358), (17, 1209236), (19, 1081948), (28, 734179), (34, 604618), (38, 540974), (68, 302309), (76, 270487), (119, 172748), (133, 154564), (238, 86374), (266, 77282), (323, 63644), (476, 43187), (532, 38641), (646, 31822), (1292, 15911), (2261, 9092), (2273, 9044), (4522, 4546)]