19716608

素因数分解:

$2^9\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:512

約数の個数: 40

約数和(自身を含む): 39901092

約数和(自身を除く): 20184484

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 194, 256, 388, 397, 512, 776, 794, 1552, 1588, 3104, 3176, 6208, 6352, 12416, 12704, 24832, 25408, 38509, 49664, 50816, 77018, 101632, 154036, 203264, 308072, 616144, 1232288, 2464576, 4929152, 9858304, 19716608]

約数ペア:

[(1, 19716608), (2, 9858304), (4, 4929152), (8, 2464576), (16, 1232288), (32, 616144), (64, 308072), (97, 203264), (128, 154036), (194, 101632), (256, 77018), (388, 50816), (397, 49664), (512, 38509), (776, 25408), (794, 24832), (1552, 12704), (1588, 12416), (3104, 6352), (3176, 6208)]