18420948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5623}}^1$

素因数の和:5653

約数の個数: 72

約数和(自身を含む): 57319808

約数和(自身を除く): 38898860

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 5623, 11246, 16869, 22492, 33738, 39361, 50607, 67476, 73099, 78722, 101214, 118083, 146198, 157444, 202428, 219297, 236166, 292396, 354249, 438594, 472332, 511693, 657891, 708498, 877188, 1023386, 1315782, 1416996, 1535079, 2046772, 2631564, 3070158, 4605237, 6140316, 9210474, 18420948]

約数ペア:

[(1, 18420948), (2, 9210474), (3, 6140316), (4, 4605237), (6, 3070158), (7, 2631564), (9, 2046772), (12, 1535079), (13, 1416996), (14, 1315782), (18, 1023386), (21, 877188), (26, 708498), (28, 657891), (36, 511693), (39, 472332), (42, 438594), (52, 354249), (63, 292396), (78, 236166), (84, 219297), (91, 202428), (117, 157444), (126, 146198), (156, 118083), (182, 101214), (234, 78722), (252, 73099), (273, 67476), (364, 50607), (468, 39361), (546, 33738), (819, 22492), (1092, 16869), (1638, 11246), (3276, 5623)]