18897008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1933}}^1$

素因数の和:2001

約数の個数: 40

約数和(自身を含む): 40289088

約数和(自身を除く): 21392080

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 1933, 2444, 3866, 4888, 7732, 9776, 15464, 25129, 30928, 50258, 90851, 100516, 181702, 201032, 363404, 402064, 726808, 1181063, 1453616, 2362126, 4724252, 9448504, 18897008]

約数ペア:

[(1, 18897008), (2, 9448504), (4, 4724252), (8, 2362126), (13, 1453616), (16, 1181063), (26, 726808), (47, 402064), (52, 363404), (94, 201032), (104, 181702), (188, 100516), (208, 90851), (376, 50258), (611, 30928), (752, 25129), (1222, 15464), (1933, 9776), (2444, 7732), (3866, 4888)]