21167019972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{2269}}^1\times {\mathrm{37019}}^1$

素因数の和:39305

約数の個数: 72

約数和(自身を含む): 61177771200

約数和(自身を除く): 40010751228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 2269, 4538, 6807, 9076, 13614, 15883, 20421, 27228, 31766, 37019, 40842, 47649, 63532, 74038, 81684, 95298, 111057, 142947, 148076, 190596, 222114, 259133, 285894, 333171, 444228, 518266, 571788, 666342, 777399, 1036532, 1332684, 1554798, 2332197, 3109596, 4664394, 9328788, 83996111, 167992222, 251988333, 335984444, 503976666, 587972777, 755964999, 1007953332, 1175945554, 1511929998, 1763918331, 2351891108, 3023859996, 3527836662, 5291754993, 7055673324, 10583509986, 21167019972]

約数ペア:

[(1, 21167019972), (2, 10583509986), (3, 7055673324), (4, 5291754993), (6, 3527836662), (7, 3023859996), (9, 2351891108), (12, 1763918331), (14, 1511929998), (18, 1175945554), (21, 1007953332), (28, 755964999), (36, 587972777), (42, 503976666), (63, 335984444), (84, 251988333), (126, 167992222), (252, 83996111), (2269, 9328788), (4538, 4664394), (6807, 3109596), (9076, 2332197), (13614, 1554798), (15883, 1332684), (20421, 1036532), (27228, 777399), (31766, 666342), (37019, 571788), (40842, 518266), (47649, 444228), (63532, 333171), (74038, 285894), (81684, 259133), (95298, 222114), (111057, 190596), (142947, 148076)]