15991394

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 26248320

約数和(自身を除く): 10256926

約数列:

[1, 2, 23, 41, 46, 61, 82, 122, 139, 278, 943, 1403, 1886, 2501, 2806, 3197, 5002, 5699, 6394, 8479, 11398, 16958, 57523, 115046, 131077, 195017, 262154, 347639, 390034, 695278, 7995697, 15991394]

約数ペア:

[(1, 15991394), (2, 7995697), (23, 695278), (41, 390034), (46, 347639), (61, 262154), (82, 195017), (122, 131077), (139, 115046), (278, 57523), (943, 16958), (1403, 11398), (1886, 8479), (2501, 6394), (2806, 5699), (3197, 5002)]