19972144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 41434848

約数和(自身を除く): 21462704

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 101, 136, 202, 272, 404, 727, 808, 1454, 1616, 1717, 2908, 3434, 5816, 6868, 11632, 12359, 13736, 24718, 27472, 49436, 73427, 98872, 146854, 197744, 293708, 587416, 1174832, 1248259, 2496518, 4993036, 9986072, 19972144]

約数ペア:

[(1, 19972144), (2, 9986072), (4, 4993036), (8, 2496518), (16, 1248259), (17, 1174832), (34, 587416), (68, 293708), (101, 197744), (136, 146854), (202, 98872), (272, 73427), (404, 49436), (727, 27472), (808, 24718), (1454, 13736), (1616, 12359), (1717, 11632), (2908, 6868), (3434, 5816)]