19445868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1183

約数の個数: 72

約数和(自身を含む): 54415088

約数和(自身を除く): 34969220

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 666, 962, 1123, 1332, 1443, 1924, 2246, 2886, 3369, 4329, 4492, 5772, 6738, 8658, 10107, 13476, 14599, 17316, 20214, 29198, 40428, 41551, 43797, 58396, 83102, 87594, 124653, 131391, 166204, 175188, 249306, 262782, 373959, 498612, 525564, 540163, 747918, 1080326, 1495836, 1620489, 2160652, 3240978, 4861467, 6481956, 9722934, 19445868]

約数ペア:

[(1, 19445868), (2, 9722934), (3, 6481956), (4, 4861467), (6, 3240978), (9, 2160652), (12, 1620489), (13, 1495836), (18, 1080326), (26, 747918), (36, 540163), (37, 525564), (39, 498612), (52, 373959), (74, 262782), (78, 249306), (111, 175188), (117, 166204), (148, 131391), (156, 124653), (222, 87594), (234, 83102), (333, 58396), (444, 43797), (468, 41551), (481, 40428), (666, 29198), (962, 20214), (1123, 17316), (1332, 14599), (1443, 13476), (1924, 10107), (2246, 8658), (2886, 6738), (3369, 5772), (4329, 4492)]