19624545

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{503}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 37134720

約数和(自身を除く): 17510175

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 289, 459, 503, 765, 867, 1445, 1509, 2295, 2515, 2601, 4335, 4527, 7545, 7803, 8551, 13005, 13581, 22635, 25653, 39015, 42755, 67905, 76959, 128265, 145367, 230877, 384795, 436101, 726835, 1154385, 1308303, 2180505, 3924909, 6541515, 19624545]

約数ペア:

[(1, 19624545), (3, 6541515), (5, 3924909), (9, 2180505), (15, 1308303), (17, 1154385), (27, 726835), (45, 436101), (51, 384795), (85, 230877), (135, 145367), (153, 128265), (255, 76959), (289, 67905), (459, 42755), (503, 39015), (765, 25653), (867, 22635), (1445, 13581), (1509, 13005), (2295, 8551), (2515, 7803), (2601, 7545), (4335, 4527)]