21621264

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 64341120

約数和(自身を除く): 42719856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 229, 281, 336, 458, 562, 687, 843, 916, 1124, 1374, 1603, 1686, 1832, 1967, 2248, 2748, 3206, 3372, 3664, 3934, 4496, 4809, 5496, 5901, 6412, 6744, 7868, 9618, 10992, 11802, 12824, 13488, 15736, 19236, 23604, 25648, 31472, 38472, 47208, 64349, 76944, 94416, 128698, 193047, 257396, 386094, 450443, 514792, 772188, 900886, 1029584, 1351329, 1544376, 1801772, 2702658, 3088752, 3603544, 5405316, 7207088, 10810632, 21621264]

約数ペア:

[(1, 21621264), (2, 10810632), (3, 7207088), (4, 5405316), (6, 3603544), (7, 3088752), (8, 2702658), (12, 1801772), (14, 1544376), (16, 1351329), (21, 1029584), (24, 900886), (28, 772188), (42, 514792), (48, 450443), (56, 386094), (84, 257396), (112, 193047), (168, 128698), (229, 94416), (281, 76944), (336, 64349), (458, 47208), (562, 38472), (687, 31472), (843, 25648), (916, 23604), (1124, 19236), (1374, 15736), (1603, 13488), (1686, 12824), (1832, 11802), (1967, 10992), (2248, 9618), (2748, 7868), (3206, 6744), (3372, 6412), (3664, 5901), (3934, 5496), (4496, 4809)]