19912314608

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{822551}}^1$

素因数の和:822665

約数の個数: 40

約数和(自身を含む): 41308561440

約数和(自身を除く): 21396246832

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 136, 178, 272, 356, 712, 1424, 1513, 3026, 6052, 12104, 24208, 822551, 1645102, 3290204, 6580408, 13160816, 13983367, 27966734, 55933468, 73207039, 111866936, 146414078, 223733872, 292828156, 585656312, 1171312624, 1244519663, 2489039326, 4978078652, 9956157304, 19912314608]

約数ペア:

[(1, 19912314608), (2, 9956157304), (4, 4978078652), (8, 2489039326), (16, 1244519663), (17, 1171312624), (34, 585656312), (68, 292828156), (89, 223733872), (136, 146414078), (178, 111866936), (272, 73207039), (356, 55933468), (712, 27966734), (1424, 13983367), (1513, 13160816), (3026, 6580408), (6052, 3290204), (12104, 1645102), (24208, 822551)]