21890147648

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{20119621}}^1$

素因数の和:20119650

約数の個数: 28

約数和(自身を含む): 45993455892

約数和(自身を除く): 24103308244

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 20119621, 40239242, 80478484, 160956968, 321913936, 342033557, 643827872, 684067114, 1287655744, 1368134228, 2736268456, 5472536912, 10945073824, 21890147648]

約数ペア:

[(1, 21890147648), (2, 10945073824), (4, 5472536912), (8, 2736268456), (16, 1368134228), (17, 1287655744), (32, 684067114), (34, 643827872), (64, 342033557), (68, 321913936), (136, 160956968), (272, 80478484), (544, 40239242), (1088, 20119621)]