17987998

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 36

約数和(自身を含む): 32602176

約数和(自身を除く): 14614178

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 191, 217, 382, 434, 961, 1337, 1519, 1922, 2674, 3038, 5921, 6727, 9359, 11842, 13454, 18718, 41447, 47089, 82894, 94178, 183551, 290129, 367102, 580258, 1284857, 2569714, 8993999, 17987998]

約数ペア:

[(1, 17987998), (2, 8993999), (7, 2569714), (14, 1284857), (31, 580258), (49, 367102), (62, 290129), (98, 183551), (191, 94178), (217, 82894), (382, 47089), (434, 41447), (961, 18718), (1337, 13454), (1519, 11842), (1922, 9359), (2674, 6727), (3038, 5921)]