21455336

素因数分解:

$2^3\times 7^4\times {\mathrm{1117}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 46972770

約数和(自身を除く): 25517434

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1117, 1372, 2234, 2401, 2744, 4468, 4802, 7819, 8936, 9604, 15638, 19208, 31276, 54733, 62552, 109466, 218932, 383131, 437864, 766262, 1532524, 2681917, 3065048, 5363834, 10727668, 21455336]

約数ペア:

[(1, 21455336), (2, 10727668), (4, 5363834), (7, 3065048), (8, 2681917), (14, 1532524), (28, 766262), (49, 437864), (56, 383131), (98, 218932), (196, 109466), (343, 62552), (392, 54733), (686, 31276), (1117, 19208), (1372, 15638), (2234, 9604), (2401, 8936), (2744, 7819), (4468, 4802)]