18117988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2239}}^1$

素因数の和:2284

約数の個数: 36

約数和(自身を含む): 38510080

約数和(自身を除く): 20392092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2239, 4046, 4478, 8092, 8956, 15673, 31346, 38063, 62692, 76126, 152252, 266441, 532882, 647071, 1065764, 1294142, 2588284, 4529497, 9058994, 18117988]

約数ペア:

[(1, 18117988), (2, 9058994), (4, 4529497), (7, 2588284), (14, 1294142), (17, 1065764), (28, 647071), (34, 532882), (68, 266441), (119, 152252), (238, 76126), (289, 62692), (476, 38063), (578, 31346), (1156, 15673), (2023, 8956), (2239, 8092), (4046, 4478)]