19864188

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 53071200

約数和(自身を除く): 33207012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 53, 58, 87, 106, 116, 159, 174, 212, 261, 318, 348, 359, 477, 522, 636, 718, 954, 1044, 1077, 1436, 1537, 1908, 2154, 3074, 3231, 4308, 4611, 6148, 6462, 9222, 10411, 12924, 13833, 18444, 19027, 20822, 27666, 31233, 38054, 41644, 55332, 57081, 62466, 76108, 93699, 114162, 124932, 171243, 187398, 228324, 342486, 374796, 551783, 684972, 1103566, 1655349, 2207132, 3310698, 4966047, 6621396, 9932094, 19864188]

約数ペア:

[(1, 19864188), (2, 9932094), (3, 6621396), (4, 4966047), (6, 3310698), (9, 2207132), (12, 1655349), (18, 1103566), (29, 684972), (36, 551783), (53, 374796), (58, 342486), (87, 228324), (106, 187398), (116, 171243), (159, 124932), (174, 114162), (212, 93699), (261, 76108), (318, 62466), (348, 57081), (359, 55332), (477, 41644), (522, 38054), (636, 31233), (718, 27666), (954, 20822), (1044, 19027), (1077, 18444), (1436, 13833), (1537, 12924), (1908, 10411), (2154, 9222), (3074, 6462), (3231, 6148), (4308, 4611)]