18478852

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 38886400

約数和(自身を除く): 20407548

約数列:

[1, 2, 4, 7, 14, 28, 31, 61, 62, 122, 124, 217, 244, 349, 427, 434, 698, 854, 868, 1396, 1708, 1891, 2443, 3782, 4886, 7564, 9772, 10819, 13237, 21289, 21638, 26474, 42578, 43276, 52948, 75733, 85156, 149023, 151466, 298046, 302932, 596092, 659959, 1319918, 2639836, 4619713, 9239426, 18478852]

約数ペア:

[(1, 18478852), (2, 9239426), (4, 4619713), (7, 2639836), (14, 1319918), (28, 659959), (31, 596092), (61, 302932), (62, 298046), (122, 151466), (124, 149023), (217, 85156), (244, 75733), (349, 52948), (427, 43276), (434, 42578), (698, 26474), (854, 21638), (868, 21289), (1396, 13237), (1708, 10819), (1891, 9772), (2443, 7564), (3782, 4886)]