18967144

素因数分解:

$2^3\times 7^1\times {\mathrm{577}}^1\times {\mathrm{587}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 40783680

約数和(自身を除く): 21816536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 577, 587, 1154, 1174, 2308, 2348, 4039, 4109, 4616, 4696, 8078, 8218, 16156, 16436, 32312, 32872, 338699, 677398, 1354796, 2370893, 2709592, 4741786, 9483572, 18967144]

約数ペア:

[(1, 18967144), (2, 9483572), (4, 4741786), (7, 2709592), (8, 2370893), (14, 1354796), (28, 677398), (56, 338699), (577, 32872), (587, 32312), (1154, 16436), (1174, 16156), (2308, 8218), (2348, 8078), (4039, 4696), (4109, 4616)]