78771891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1827

約数の個数: 32

約数和(自身を含む): 122330880

約数和(自身を除く): 43558989

約数列:

[1, 3, 11, 19, 33, 57, 73, 209, 219, 627, 803, 1387, 1721, 2409, 4161, 5163, 15257, 18931, 32699, 45771, 56793, 98097, 125633, 359689, 376899, 1079067, 1381963, 2387027, 4145889, 7161081, 26257297, 78771891]

約数ペア:

[(1, 78771891), (3, 26257297), (11, 7161081), (19, 4145889), (33, 2387027), (57, 1381963), (73, 1079067), (209, 376899), (219, 359689), (627, 125633), (803, 98097), (1387, 56793), (1721, 45771), (2409, 32699), (4161, 18931), (5163, 15257)]