221236911

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{17299}}^1$

素因数の和:17348

約数の個数: 36

約数和(自身を含む): 384579000

約数和(自身を除く): 163342089

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 4263, 12789, 17299, 51897, 121093, 155691, 363279, 501671, 847651, 1089837, 1505013, 2542953, 3511697, 4515039, 7628859, 10535091, 24581879, 31605273, 73745637, 221236911]

約数ペア:

[(1, 221236911), (3, 73745637), (7, 31605273), (9, 24581879), (21, 10535091), (29, 7628859), (49, 4515039), (63, 3511697), (87, 2542953), (147, 1505013), (203, 1089837), (261, 847651), (441, 501671), (609, 363279), (1421, 155691), (1827, 121093), (4263, 51897), (12789, 17299)]