21298242

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 29389758

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 79, 98, 131, 147, 158, 237, 262, 294, 343, 393, 474, 553, 686, 786, 917, 1029, 1106, 1659, 1834, 2058, 2751, 3318, 3871, 5502, 6419, 7742, 10349, 11613, 12838, 19257, 20698, 23226, 27097, 31047, 38514, 44933, 54194, 62094, 72443, 81291, 89866, 134799, 144886, 162582, 217329, 269598, 434658, 507101, 1014202, 1521303, 3042606, 3549707, 7099414, 10649121, 21298242]

約数ペア:

[(1, 21298242), (2, 10649121), (3, 7099414), (6, 3549707), (7, 3042606), (14, 1521303), (21, 1014202), (42, 507101), (49, 434658), (79, 269598), (98, 217329), (131, 162582), (147, 144886), (158, 134799), (237, 89866), (262, 81291), (294, 72443), (343, 62094), (393, 54194), (474, 44933), (553, 38514), (686, 31047), (786, 27097), (917, 23226), (1029, 20698), (1106, 19257), (1659, 12838), (1834, 11613), (2058, 10349), (2751, 7742), (3318, 6419), (3871, 5502)]