21123045

素因数分解:

$3^3\times 5^1\times {\mathrm{156467}}^1$

素因数の和:156481

約数の個数: 16

約数和(自身を含む): 37552320

約数和(自身を除く): 16429275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 156467, 469401, 782335, 1408203, 2347005, 4224609, 7041015, 21123045]

約数ペア:

[(1, 21123045), (3, 7041015), (5, 4224609), (9, 2347005), (15, 1408203), (27, 782335), (45, 469401), (135, 156467)]