18986384

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 38449920

約数和(自身を除く): 19463536

約数列:

[1, 2, 4, 8, 16, 31, 62, 101, 124, 202, 248, 379, 404, 496, 758, 808, 1516, 1616, 3032, 3131, 6064, 6262, 11749, 12524, 23498, 25048, 38279, 46996, 50096, 76558, 93992, 153116, 187984, 306232, 612464, 1186649, 2373298, 4746596, 9493192, 18986384]

約数ペア:

[(1, 18986384), (2, 9493192), (4, 4746596), (8, 2373298), (16, 1186649), (31, 612464), (62, 306232), (101, 187984), (124, 153116), (202, 93992), (248, 76558), (379, 50096), (404, 46996), (496, 38279), (758, 25048), (808, 23498), (1516, 12524), (1616, 11749), (3032, 6262), (3131, 6064)]