78397893

素因数分解:

$3^2\times 7^2\times {\mathrm{389}}^1\times {\mathrm{457}}^1$

素因数の和:866

約数の個数: 36

約数和(自身を含む): 132357420

約数和(自身を除く): 53959527

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 389, 441, 457, 1167, 1371, 2723, 3199, 3501, 4113, 8169, 9597, 19061, 22393, 24507, 28791, 57183, 67179, 171549, 177773, 201537, 533319, 1244411, 1599957, 3733233, 8710877, 11199699, 26132631, 78397893]

約数ペア:

[(1, 78397893), (3, 26132631), (7, 11199699), (9, 8710877), (21, 3733233), (49, 1599957), (63, 1244411), (147, 533319), (389, 201537), (441, 177773), (457, 171549), (1167, 67179), (1371, 57183), (2723, 28791), (3199, 24507), (3501, 22393), (4113, 19061), (8169, 9597)]