19892488

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{751}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 47646720

約数和(自身を除く): 27754232

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 56, 77, 86, 88, 154, 172, 301, 308, 344, 473, 602, 616, 751, 946, 1204, 1502, 1892, 2408, 3004, 3311, 3784, 5257, 6008, 6622, 8261, 10514, 13244, 16522, 21028, 26488, 32293, 33044, 42056, 57827, 64586, 66088, 115654, 129172, 226051, 231308, 258344, 355223, 452102, 462616, 710446, 904204, 1420892, 1808408, 2486561, 2841784, 4973122, 9946244, 19892488]

約数ペア:

[(1, 19892488), (2, 9946244), (4, 4973122), (7, 2841784), (8, 2486561), (11, 1808408), (14, 1420892), (22, 904204), (28, 710446), (43, 462616), (44, 452102), (56, 355223), (77, 258344), (86, 231308), (88, 226051), (154, 129172), (172, 115654), (301, 66088), (308, 64586), (344, 57827), (473, 42056), (602, 33044), (616, 32293), (751, 26488), (946, 21028), (1204, 16522), (1502, 13244), (1892, 10514), (2408, 8261), (3004, 6622), (3311, 6008), (3784, 5257)]