21241515

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{38273}}^1$

素因数の和:38318

約数の個数: 16

約数和(自身を含む): 34905888

約数和(自身を除く): 13664373

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 38273, 114819, 191365, 574095, 1416101, 4248303, 7080505, 21241515]

約数ペア:

[(1, 21241515), (3, 7080505), (5, 4248303), (15, 1416101), (37, 574095), (111, 191365), (185, 114819), (555, 38273)]