20187547821

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1489}}^1\times {\mathrm{12659}}^1$

素因数の和:14178

約数の個数: 48

約数和(自身を含む): 35312284800

約数和(自身を除く): 15124736979

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 1489, 4467, 10423, 12659, 13401, 25313, 31269, 37977, 75939, 88613, 93807, 113931, 177191, 215203, 227817, 265839, 531573, 645609, 797517, 1506421, 1594719, 1936827, 4519263, 13557789, 18849251, 56547753, 131944757, 169643259, 320437267, 395834271, 961311801, 1187502813, 2243060869, 2883935403, 6729182607, 20187547821]

約数ペア:

[(1, 20187547821), (3, 6729182607), (7, 2883935403), (9, 2243060869), (17, 1187502813), (21, 961311801), (51, 395834271), (63, 320437267), (119, 169643259), (153, 131944757), (357, 56547753), (1071, 18849251), (1489, 13557789), (4467, 4519263), (10423, 1936827), (12659, 1594719), (13401, 1506421), (25313, 797517), (31269, 645609), (37977, 531573), (75939, 265839), (88613, 227817), (93807, 215203), (113931, 177191)]