21447045

素因数分解:

$3^3\times 5^1\times {\mathrm{158867}}^1$

素因数の和:158881

約数の個数: 16

約数和(自身を含む): 38128320

約数和(自身を除く): 16681275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158867, 476601, 794335, 1429803, 2383005, 4289409, 7149015, 21447045]

約数ペア:

[(1, 21447045), (3, 7149015), (5, 4289409), (9, 2383005), (15, 1429803), (27, 794335), (45, 476601), (135, 158867)]