19931888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:729

約数の個数: 40

約数和(自身を含む): 41283072

約数和(自身を除く): 21351184

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 127, 136, 254, 272, 508, 577, 1016, 1154, 2032, 2159, 2308, 4318, 4616, 8636, 9232, 9809, 17272, 19618, 34544, 39236, 73279, 78472, 146558, 156944, 293116, 586232, 1172464, 1245743, 2491486, 4982972, 9965944, 19931888]

約数ペア:

[(1, 19931888), (2, 9965944), (4, 4982972), (8, 2491486), (16, 1245743), (17, 1172464), (34, 586232), (68, 293116), (127, 156944), (136, 146558), (254, 78472), (272, 73279), (508, 39236), (577, 34544), (1016, 19618), (1154, 17272), (2032, 9809), (2159, 9232), (2308, 8636), (4318, 4616)]