20161555239

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{359}}^1\times {\mathrm{6263}}^1$

素因数の和:6700

約数の個数: 48

約数和(自身を含む): 31877245440

約数和(自身を除く): 11715690201

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 359, 427, 1077, 1281, 2513, 2989, 6263, 7539, 8967, 17591, 18789, 21899, 43841, 52773, 65697, 131523, 153293, 306887, 382043, 459879, 920661, 1073051, 1146129, 2248417, 2674301, 3219153, 6745251, 8022903, 15738919, 18720107, 47216757, 56160321, 110172433, 137153437, 330517299, 411460311, 960074059, 2880222177, 6720518413, 20161555239]

約数ペア:

[(1, 20161555239), (3, 6720518413), (7, 2880222177), (21, 960074059), (49, 411460311), (61, 330517299), (147, 137153437), (183, 110172433), (359, 56160321), (427, 47216757), (1077, 18720107), (1281, 15738919), (2513, 8022903), (2989, 6745251), (6263, 3219153), (7539, 2674301), (8967, 2248417), (17591, 1146129), (18789, 1073051), (21899, 920661), (43841, 459879), (52773, 382043), (65697, 306887), (131523, 153293)]