21350655

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1777}}^1$

素因数の和:1880

約数の個数: 32

約数和(自身を含む): 38404800

約数和(自身を除く): 17054145

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 1777, 2403, 4005, 5331, 8885, 12015, 15993, 26655, 47979, 79965, 158153, 239895, 474459, 790765, 1423377, 2372295, 4270131, 7116885, 21350655]

約数ペア:

[(1, 21350655), (3, 7116885), (5, 4270131), (9, 2372295), (15, 1423377), (27, 790765), (45, 474459), (89, 239895), (135, 158153), (267, 79965), (445, 47979), (801, 26655), (1335, 15993), (1777, 12015), (2403, 8885), (4005, 5331)]