19944315

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 39132288

約数和(自身を除く): 19187973

約数列:

[1, 3, 5, 9, 15, 17, 29, 31, 45, 51, 85, 87, 93, 145, 153, 155, 255, 261, 279, 435, 465, 493, 527, 765, 841, 899, 1305, 1395, 1479, 1581, 2465, 2523, 2635, 2697, 4205, 4437, 4495, 4743, 7395, 7569, 7905, 8091, 12615, 13485, 14297, 15283, 22185, 23715, 26071, 37845, 40455, 42891, 45849, 71485, 76415, 78213, 128673, 130355, 137547, 214455, 229245, 234639, 391065, 443207, 643365, 687735, 1173195, 1329621, 2216035, 3988863, 6648105, 19944315]

約数ペア:

[(1, 19944315), (3, 6648105), (5, 3988863), (9, 2216035), (15, 1329621), (17, 1173195), (29, 687735), (31, 643365), (45, 443207), (51, 391065), (85, 234639), (87, 229245), (93, 214455), (145, 137547), (153, 130355), (155, 128673), (255, 78213), (261, 76415), (279, 71485), (435, 45849), (465, 42891), (493, 40455), (527, 37845), (765, 26071), (841, 23715), (899, 22185), (1305, 15283), (1395, 14297), (1479, 13485), (1581, 12615), (2465, 8091), (2523, 7905), (2635, 7569), (2697, 7395), (4205, 4743), (4437, 4495)]