19942768

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 41260752

約数和(自身を除く): 21317984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 157, 272, 314, 467, 628, 934, 1256, 1868, 2512, 2669, 3736, 5338, 7472, 7939, 10676, 15878, 21352, 31756, 42704, 63512, 73319, 127024, 146638, 293276, 586552, 1173104, 1246423, 2492846, 4985692, 9971384, 19942768]

約数ペア:

[(1, 19942768), (2, 9971384), (4, 4985692), (8, 2492846), (16, 1246423), (17, 1173104), (34, 586552), (68, 293276), (136, 146638), (157, 127024), (272, 73319), (314, 63512), (467, 42704), (628, 31756), (934, 21352), (1256, 15878), (1868, 10676), (2512, 7939), (2669, 7472), (3736, 5338)]