1998378

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 4636800

約数和(自身を除く): 2638422

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 1609, 3218, 4827, 9654, 14481, 28962, 37007, 43443, 74014, 86886, 111021, 222042, 333063, 666126, 999189, 1998378]

約数ペア:

[(1, 1998378), (2, 999189), (3, 666126), (6, 333063), (9, 222042), (18, 111021), (23, 86886), (27, 74014), (46, 43443), (54, 37007), (69, 28962), (138, 14481), (207, 9654), (414, 4827), (621, 3218), (1242, 1609)]