17907885

素因数分解:

$3^6\times 5^1\times {\mathrm{17}}^3$

素因数の和:74

約数の個数: 56

約数和(自身を含む): 34232760

約数和(自身を除く): 16324875

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 289, 405, 459, 729, 765, 867, 1215, 1377, 1445, 2295, 2601, 3645, 4131, 4335, 4913, 6885, 7803, 12393, 13005, 14739, 20655, 23409, 24565, 39015, 44217, 61965, 70227, 73695, 117045, 132651, 210681, 221085, 351135, 397953, 663255, 1053405, 1193859, 1989765, 3581577, 5969295, 17907885]

約数ペア:

[(1, 17907885), (3, 5969295), (5, 3581577), (9, 1989765), (15, 1193859), (17, 1053405), (27, 663255), (45, 397953), (51, 351135), (81, 221085), (85, 210681), (135, 132651), (153, 117045), (243, 73695), (255, 70227), (289, 61965), (405, 44217), (459, 39015), (729, 24565), (765, 23409), (867, 20655), (1215, 14739), (1377, 13005), (1445, 12393), (2295, 7803), (2601, 6885), (3645, 4913), (4131, 4335)]