21303912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{733}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 61303680

約数和(自身を除く): 39999768

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 173, 346, 519, 692, 733, 1038, 1211, 1384, 1466, 2076, 2199, 2422, 2932, 3633, 4152, 4398, 4844, 5131, 5864, 7266, 8796, 9688, 10262, 14532, 15393, 17592, 20524, 29064, 30786, 41048, 61572, 123144, 126809, 253618, 380427, 507236, 760854, 887663, 1014472, 1521708, 1775326, 2662989, 3043416, 3550652, 5325978, 7101304, 10651956, 21303912]

約数ペア:

[(1, 21303912), (2, 10651956), (3, 7101304), (4, 5325978), (6, 3550652), (7, 3043416), (8, 2662989), (12, 1775326), (14, 1521708), (21, 1014472), (24, 887663), (28, 760854), (42, 507236), (56, 380427), (84, 253618), (168, 126809), (173, 123144), (346, 61572), (519, 41048), (692, 30786), (733, 29064), (1038, 20524), (1211, 17592), (1384, 15393), (1466, 14532), (2076, 10262), (2199, 9688), (2422, 8796), (2932, 7266), (3633, 5864), (4152, 5131), (4398, 4844)]