19669221

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:107

約数の個数: 96

約数和(自身を含む): 37739520

約数和(自身を除く): 18070299

約数列:

[1, 3, 9, 11, 13, 17, 29, 31, 33, 39, 51, 87, 93, 99, 117, 143, 153, 187, 221, 261, 279, 319, 341, 377, 403, 429, 493, 527, 561, 663, 899, 957, 1023, 1131, 1209, 1287, 1479, 1581, 1683, 1989, 2431, 2697, 2871, 3069, 3393, 3627, 4147, 4433, 4437, 4743, 5423, 5797, 6409, 6851, 7293, 8091, 9889, 11687, 12441, 13299, 15283, 16269, 17391, 19227, 20553, 21879, 29667, 35061, 37323, 39897, 45849, 48807, 52173, 57681, 61659, 70499, 75361, 89001, 105183, 128557, 137547, 168113, 198679, 211497, 226083, 385671, 504339, 596037, 634491, 678249, 1157013, 1513017, 1788111, 2185469, 6556407, 19669221]

約数ペア:

[(1, 19669221), (3, 6556407), (9, 2185469), (11, 1788111), (13, 1513017), (17, 1157013), (29, 678249), (31, 634491), (33, 596037), (39, 504339), (51, 385671), (87, 226083), (93, 211497), (99, 198679), (117, 168113), (143, 137547), (153, 128557), (187, 105183), (221, 89001), (261, 75361), (279, 70499), (319, 61659), (341, 57681), (377, 52173), (403, 48807), (429, 45849), (493, 39897), (527, 37323), (561, 35061), (663, 29667), (899, 21879), (957, 20553), (1023, 19227), (1131, 17391), (1209, 16269), (1287, 15283), (1479, 13299), (1581, 12441), (1683, 11687), (1989, 9889), (2431, 8091), (2697, 7293), (2871, 6851), (3069, 6409), (3393, 5797), (3627, 5423), (4147, 4743), (4433, 4437)]