20835438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 29242002

約数列:

[1, 2, 3, 6, 13, 17, 19, 26, 34, 38, 39, 51, 57, 78, 102, 114, 221, 247, 323, 442, 494, 646, 663, 741, 827, 969, 1326, 1482, 1654, 1938, 2481, 4199, 4962, 8398, 10751, 12597, 14059, 15713, 21502, 25194, 28118, 31426, 32253, 42177, 47139, 64506, 84354, 94278, 182767, 204269, 267121, 365534, 408538, 534242, 548301, 612807, 801363, 1096602, 1225614, 1602726, 3472573, 6945146, 10417719, 20835438]

約数ペア:

[(1, 20835438), (2, 10417719), (3, 6945146), (6, 3472573), (13, 1602726), (17, 1225614), (19, 1096602), (26, 801363), (34, 612807), (38, 548301), (39, 534242), (51, 408538), (57, 365534), (78, 267121), (102, 204269), (114, 182767), (221, 94278), (247, 84354), (323, 64506), (442, 47139), (494, 42177), (646, 32253), (663, 31426), (741, 28118), (827, 25194), (969, 21502), (1326, 15713), (1482, 14059), (1654, 12597), (1938, 10751), (2481, 8398), (4199, 4962)]