64681947

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 108501120

約数和(自身を除く): 43819173

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 137, 171, 209, 251, 411, 627, 753, 1233, 1507, 1881, 2259, 2603, 2761, 4521, 4769, 7809, 8283, 13563, 14307, 23427, 24849, 28633, 34387, 42921, 52459, 85899, 103161, 157377, 257697, 309483, 378257, 472131, 653353, 1134771, 1960059, 3404313, 5880177, 7186883, 21560649, 64681947]

約数ペア:

[(1, 64681947), (3, 21560649), (9, 7186883), (11, 5880177), (19, 3404313), (33, 1960059), (57, 1134771), (99, 653353), (137, 472131), (171, 378257), (209, 309483), (251, 257697), (411, 157377), (627, 103161), (753, 85899), (1233, 52459), (1507, 42921), (1881, 34387), (2259, 28633), (2603, 24849), (2761, 23427), (4521, 14307), (4769, 13563), (7809, 8283)]