21761820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120899}}^1$

素因数の和:120914

約数の個数: 36

約数和(自身を含む): 66011400

約数和(自身を除く): 44249580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120899, 241798, 362697, 483596, 604495, 725394, 1088091, 1208990, 1450788, 1813485, 2176182, 2417980, 3626970, 4352364, 5440455, 7253940, 10880910, 21761820]

約数ペア:

[(1, 21761820), (2, 10880910), (3, 7253940), (4, 5440455), (5, 4352364), (6, 3626970), (9, 2417980), (10, 2176182), (12, 1813485), (15, 1450788), (18, 1208990), (20, 1088091), (30, 725394), (36, 604495), (45, 483596), (60, 362697), (90, 241798), (180, 120899)]