20897682

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27486318

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 59, 78, 114, 118, 177, 239, 247, 354, 478, 494, 717, 741, 767, 1121, 1434, 1482, 1534, 2242, 2301, 3107, 3363, 4541, 4602, 6214, 6726, 9082, 9321, 13623, 14101, 14573, 18642, 27246, 28202, 29146, 42303, 43719, 59033, 84606, 87438, 118066, 177099, 183313, 267919, 354198, 366626, 535838, 549939, 803757, 1099878, 1607514, 3482947, 6965894, 10448841, 20897682]

約数ペア:

[(1, 20897682), (2, 10448841), (3, 6965894), (6, 3482947), (13, 1607514), (19, 1099878), (26, 803757), (38, 549939), (39, 535838), (57, 366626), (59, 354198), (78, 267919), (114, 183313), (118, 177099), (177, 118066), (239, 87438), (247, 84606), (354, 59033), (478, 43719), (494, 42303), (717, 29146), (741, 28202), (767, 27246), (1121, 18642), (1434, 14573), (1482, 14101), (1534, 13623), (2242, 9321), (2301, 9082), (3107, 6726), (3363, 6214), (4541, 4602)]