18826905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 33067584

約数和(自身を除く): 14240679

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 101, 129, 215, 255, 289, 303, 505, 645, 731, 867, 1445, 1515, 1717, 2193, 3655, 4335, 4343, 5151, 8585, 10965, 12427, 13029, 21715, 25755, 29189, 37281, 62135, 65145, 73831, 87567, 145945, 186405, 221493, 369155, 437835, 1107465, 1255127, 3765381, 6275635, 18826905]

約数ペア:

[(1, 18826905), (3, 6275635), (5, 3765381), (15, 1255127), (17, 1107465), (43, 437835), (51, 369155), (85, 221493), (101, 186405), (129, 145945), (215, 87567), (255, 73831), (289, 65145), (303, 62135), (505, 37281), (645, 29189), (731, 25755), (867, 21715), (1445, 13029), (1515, 12427), (1717, 10965), (2193, 8585), (3655, 5151), (4335, 4343)]