21615252

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 52476480

約数和(自身を除く): 30861228

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 89, 111, 148, 178, 222, 267, 356, 444, 534, 547, 1068, 1094, 1641, 2188, 3282, 3293, 6564, 6586, 9879, 13172, 19758, 20239, 39516, 40478, 48683, 60717, 80956, 97366, 121434, 146049, 194732, 242868, 292098, 584196, 1801271, 3602542, 5403813, 7205084, 10807626, 21615252]

約数ペア:

[(1, 21615252), (2, 10807626), (3, 7205084), (4, 5403813), (6, 3602542), (12, 1801271), (37, 584196), (74, 292098), (89, 242868), (111, 194732), (148, 146049), (178, 121434), (222, 97366), (267, 80956), (356, 60717), (444, 48683), (534, 40478), (547, 39516), (1068, 20239), (1094, 19758), (1641, 13172), (2188, 9879), (3282, 6586), (3293, 6564)]