18724804

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 40136320

約数和(自身を除く): 21411516

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 61, 76, 122, 133, 244, 266, 427, 532, 577, 854, 1154, 1159, 1708, 2308, 2318, 4039, 4636, 8078, 8113, 10963, 16156, 16226, 21926, 32452, 35197, 43852, 70394, 76741, 140788, 153482, 246379, 306964, 492758, 668743, 985516, 1337486, 2674972, 4681201, 9362402, 18724804]

約数ペア:

[(1, 18724804), (2, 9362402), (4, 4681201), (7, 2674972), (14, 1337486), (19, 985516), (28, 668743), (38, 492758), (61, 306964), (76, 246379), (122, 153482), (133, 140788), (244, 76741), (266, 70394), (427, 43852), (532, 35197), (577, 32452), (854, 21926), (1154, 16226), (1159, 16156), (1708, 10963), (2308, 8113), (2318, 8078), (4039, 4636)]