21166550

素因数分解:

$2^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{2447}}^1$

素因数の和:2632

約数の個数: 24

約数和(自身を含む): 39613536

約数和(自身を除く): 18446986

約数列:

[1, 2, 5, 10, 25, 50, 173, 346, 865, 1730, 2447, 4325, 4894, 8650, 12235, 24470, 61175, 122350, 423331, 846662, 2116655, 4233310, 10583275, 21166550]

約数ペア:

[(1, 21166550), (2, 10583275), (5, 4233310), (10, 2116655), (25, 846662), (50, 423331), (173, 122350), (346, 61175), (865, 24470), (1730, 12235), (2447, 8650), (4325, 4894)]