20235591

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 12262329

約数列:

[1, 3, 9, 29, 31, 41, 61, 87, 93, 123, 183, 261, 279, 369, 549, 899, 1189, 1271, 1769, 1891, 2501, 2697, 3567, 3813, 5307, 5673, 7503, 8091, 10701, 11439, 15921, 17019, 22509, 36859, 54839, 72529, 77531, 110577, 164517, 217587, 232593, 331731, 493551, 652761, 697779, 2248399, 6745197, 20235591]

約数ペア:

[(1, 20235591), (3, 6745197), (9, 2248399), (29, 697779), (31, 652761), (41, 493551), (61, 331731), (87, 232593), (93, 217587), (123, 164517), (183, 110577), (261, 77531), (279, 72529), (369, 54839), (549, 36859), (899, 22509), (1189, 17019), (1271, 15921), (1769, 11439), (1891, 10701), (2501, 8091), (2697, 7503), (3567, 5673), (3813, 5307)]