19721688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1319}}^1$

素因数の和:1424

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 37302312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 89, 168, 178, 267, 356, 534, 623, 712, 1068, 1246, 1319, 1869, 2136, 2492, 2638, 3738, 3957, 4984, 5276, 7476, 7914, 9233, 10552, 14952, 15828, 18466, 27699, 31656, 36932, 55398, 73864, 110796, 117391, 221592, 234782, 352173, 469564, 704346, 821737, 939128, 1408692, 1643474, 2465211, 2817384, 3286948, 4930422, 6573896, 9860844, 19721688]

約数ペア:

[(1, 19721688), (2, 9860844), (3, 6573896), (4, 4930422), (6, 3286948), (7, 2817384), (8, 2465211), (12, 1643474), (14, 1408692), (21, 939128), (24, 821737), (28, 704346), (42, 469564), (56, 352173), (84, 234782), (89, 221592), (168, 117391), (178, 110796), (267, 73864), (356, 55398), (534, 36932), (623, 31656), (712, 27699), (1068, 18466), (1246, 15828), (1319, 14952), (1869, 10552), (2136, 9233), (2492, 7914), (2638, 7476), (3738, 5276), (3957, 4984)]