18415984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 37283328

約数和(自身を除く): 18867344

約数列:

[1, 2, 4, 8, 16, 31, 62, 107, 124, 214, 248, 347, 428, 496, 694, 856, 1388, 1712, 2776, 3317, 5552, 6634, 10757, 13268, 21514, 26536, 37129, 43028, 53072, 74258, 86056, 148516, 172112, 297032, 594064, 1150999, 2301998, 4603996, 9207992, 18415984]

約数ペア:

[(1, 18415984), (2, 9207992), (4, 4603996), (8, 2301998), (16, 1150999), (31, 594064), (62, 297032), (107, 172112), (124, 148516), (214, 86056), (248, 74258), (347, 53072), (428, 43028), (496, 37129), (694, 26536), (856, 21514), (1388, 13268), (1712, 10757), (2776, 6634), (3317, 5552)]