21826360

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6131}}^1$

素因数の和:6231

約数の個数: 32

約数和(自身を含む): 49669200

約数和(自身を除く): 27842840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 6131, 12262, 24524, 30655, 49048, 61310, 122620, 245240, 545659, 1091318, 2182636, 2728295, 4365272, 5456590, 10913180, 21826360]

約数ペア:

[(1, 21826360), (2, 10913180), (4, 5456590), (5, 4365272), (8, 2728295), (10, 2182636), (20, 1091318), (40, 545659), (89, 245240), (178, 122620), (356, 61310), (445, 49048), (712, 30655), (890, 24524), (1780, 12262), (3560, 6131)]