19639641

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 33488640

約数和(自身を除く): 13848999

約数列:

[1, 3, 7, 17, 21, 29, 49, 51, 87, 119, 147, 203, 271, 357, 493, 609, 813, 833, 1421, 1479, 1897, 2499, 3451, 4263, 4607, 5691, 7859, 10353, 13279, 13821, 23577, 24157, 32249, 39837, 55013, 72471, 96747, 133603, 165039, 225743, 385091, 400809, 677229, 935221, 1155273, 2805663, 6546547, 19639641]

約数ペア:

[(1, 19639641), (3, 6546547), (7, 2805663), (17, 1155273), (21, 935221), (29, 677229), (49, 400809), (51, 385091), (87, 225743), (119, 165039), (147, 133603), (203, 96747), (271, 72471), (357, 55013), (493, 39837), (609, 32249), (813, 24157), (833, 23577), (1421, 13821), (1479, 13279), (1897, 10353), (2499, 7859), (3451, 5691), (4263, 4607)]