21167383048

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{641747}}^1$

素因数の和:641810

約数の個数: 64

約数和(自身を含む): 49286246400

約数和(自身を除く): 28118863352

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 4123, 4712, 8246, 16492, 32984, 641747, 1283494, 2566988, 4492229, 5133976, 8984458, 12193193, 17968916, 19894157, 24386386, 35937832, 39788314, 48772772, 79576628, 85352351, 97545544, 139259099, 159153256, 170704702, 278518198, 341409404, 377988983, 557036396, 682818808, 755977966, 1114072792, 1511955932, 2645922881, 3023911864, 5291845762, 10583691524, 21167383048]

約数ペア:

[(1, 21167383048), (2, 10583691524), (4, 5291845762), (7, 3023911864), (8, 2645922881), (14, 1511955932), (19, 1114072792), (28, 755977966), (31, 682818808), (38, 557036396), (56, 377988983), (62, 341409404), (76, 278518198), (124, 170704702), (133, 159153256), (152, 139259099), (217, 97545544), (248, 85352351), (266, 79576628), (434, 48772772), (532, 39788314), (589, 35937832), (868, 24386386), (1064, 19894157), (1178, 17968916), (1736, 12193193), (2356, 8984458), (4123, 5133976), (4712, 4492229), (8246, 2566988), (16492, 1283494), (32984, 641747)]