19971345

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 34076160

約数和(自身を除く): 14104815

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 271, 289, 813, 867, 1355, 1445, 4065, 4335, 4607, 4913, 13821, 14739, 23035, 24565, 69105, 73695, 78319, 234957, 391595, 1174785, 1331423, 3994269, 6657115, 19971345]

約数ペア:

[(1, 19971345), (3, 6657115), (5, 3994269), (15, 1331423), (17, 1174785), (51, 391595), (85, 234957), (255, 78319), (271, 73695), (289, 69105), (813, 24565), (867, 23035), (1355, 14739), (1445, 13821), (4065, 4913), (4335, 4607)]