19854224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1801}}^1$

素因数の和:1875

約数の個数: 40

約数和(自身を含む): 42231672

約数和(自身を除く): 22377448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1801, 2756, 3602, 5512, 7204, 11024, 14408, 23413, 28816, 46826, 93652, 95453, 187304, 190906, 374608, 381812, 763624, 1240889, 1527248, 2481778, 4963556, 9927112, 19854224]

約数ペア:

[(1, 19854224), (2, 9927112), (4, 4963556), (8, 2481778), (13, 1527248), (16, 1240889), (26, 763624), (52, 381812), (53, 374608), (104, 190906), (106, 187304), (208, 95453), (212, 93652), (424, 46826), (689, 28816), (848, 23413), (1378, 14408), (1801, 11024), (2756, 7204), (3602, 5512)]