20697579

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2728

約数の個数: 32

約数和(自身を含む): 35911680

約数和(自身を除く): 15214101

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2583, 2671, 7749, 8013, 18697, 24039, 56091, 72117, 109511, 168273, 328533, 504819, 766577, 985599, 2299731, 2956797, 6899193, 20697579]

約数ペア:

[(1, 20697579), (3, 6899193), (7, 2956797), (9, 2299731), (21, 985599), (27, 766577), (41, 504819), (63, 328533), (123, 168273), (189, 109511), (287, 72117), (369, 56091), (861, 24039), (1107, 18697), (2583, 8013), (2671, 7749)]