19991538

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{158663}}^1$

素因数の和:158678

約数の個数: 24

約数和(自身を含む): 49503168

約数和(自身を除く): 29511630

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 158663, 317326, 475989, 951978, 1110641, 1427967, 2221282, 2855934, 3331923, 6663846, 9995769, 19991538]

約数ペア:

[(1, 19991538), (2, 9995769), (3, 6663846), (6, 3331923), (7, 2855934), (9, 2221282), (14, 1427967), (18, 1110641), (21, 951978), (42, 475989), (63, 317326), (126, 158663)]