156996981

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 258912000

約数和(自身を除く): 101915019

約数列:

[1, 3, 9, 19, 27, 29, 57, 61, 87, 171, 173, 183, 261, 513, 519, 549, 551, 783, 1159, 1557, 1647, 1653, 1769, 3287, 3477, 4671, 4959, 5017, 5307, 9861, 10431, 10553, 14877, 15051, 15921, 29583, 31293, 31659, 33611, 45153, 47763, 88749, 94977, 95323, 100833, 135459, 200507, 284931, 285969, 302499, 306037, 601521, 857907, 907497, 918111, 1804563, 2573721, 2754333, 5413689, 5814703, 8262999, 17444109, 52332327, 156996981]

約数ペア:

[(1, 156996981), (3, 52332327), (9, 17444109), (19, 8262999), (27, 5814703), (29, 5413689), (57, 2754333), (61, 2573721), (87, 1804563), (171, 918111), (173, 907497), (183, 857907), (261, 601521), (513, 306037), (519, 302499), (549, 285969), (551, 284931), (783, 200507), (1159, 135459), (1557, 100833), (1647, 95323), (1653, 94977), (1769, 88749), (3287, 47763), (3477, 45153), (4671, 33611), (4959, 31659), (5017, 31293), (5307, 29583), (9861, 15921), (10431, 15051), (10553, 14877)]