21953630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1451}}^1$

素因数の和:1564

約数の個数: 32

約数和(自身を含む): 42340320

約数和(自身を除く): 20386690

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1451, 1513, 2902, 3026, 7255, 7565, 14510, 15130, 24667, 49334, 123335, 129139, 246670, 258278, 645695, 1291390, 2195363, 4390726, 10976815, 21953630]

約数ペア:

[(1, 21953630), (2, 10976815), (5, 4390726), (10, 2195363), (17, 1291390), (34, 645695), (85, 258278), (89, 246670), (170, 129139), (178, 123335), (445, 49334), (890, 24667), (1451, 15130), (1513, 14510), (2902, 7565), (3026, 7255)]