21258564

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 50973888

約数和(自身を除く): 29715324

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 137, 193, 201, 268, 274, 386, 402, 411, 548, 579, 772, 804, 822, 1158, 1644, 2316, 9179, 12931, 18358, 25862, 26441, 27537, 36716, 38793, 51724, 52882, 55074, 77586, 79323, 105764, 110148, 155172, 158646, 317292, 1771547, 3543094, 5314641, 7086188, 10629282, 21258564]

約数ペア:

[(1, 21258564), (2, 10629282), (3, 7086188), (4, 5314641), (6, 3543094), (12, 1771547), (67, 317292), (134, 158646), (137, 155172), (193, 110148), (201, 105764), (268, 79323), (274, 77586), (386, 55074), (402, 52882), (411, 51724), (548, 38793), (579, 36716), (772, 27537), (804, 26441), (822, 25862), (1158, 18358), (1644, 12931), (2316, 9179)]