18828945

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 34998912

約数和(自身を除く): 16169967

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 151, 153, 163, 255, 453, 489, 755, 765, 815, 1359, 1467, 2265, 2445, 2567, 2771, 6795, 7335, 7701, 8313, 12835, 13855, 23103, 24613, 24939, 38505, 41565, 73839, 115515, 123065, 124695, 221517, 369195, 418421, 1107585, 1255263, 2092105, 3765789, 6276315, 18828945]

約数ペア:

[(1, 18828945), (3, 6276315), (5, 3765789), (9, 2092105), (15, 1255263), (17, 1107585), (45, 418421), (51, 369195), (85, 221517), (151, 124695), (153, 123065), (163, 115515), (255, 73839), (453, 41565), (489, 38505), (755, 24939), (765, 24613), (815, 23103), (1359, 13855), (1467, 12835), (2265, 8313), (2445, 7701), (2567, 7335), (2771, 6795)]