19981368

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{25229}}^1$

素因数の和:25252

約数の個数: 48

約数和(自身を含む): 59038200

約数和(自身を除く): 39056832

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792, 25229, 50458, 75687, 100916, 151374, 201832, 227061, 277519, 302748, 454122, 555038, 605496, 832557, 908244, 1110076, 1665114, 1816488, 2220152, 2497671, 3330228, 4995342, 6660456, 9990684, 19981368]

約数ペア:

[(1, 19981368), (2, 9990684), (3, 6660456), (4, 4995342), (6, 3330228), (8, 2497671), (9, 2220152), (11, 1816488), (12, 1665114), (18, 1110076), (22, 908244), (24, 832557), (33, 605496), (36, 555038), (44, 454122), (66, 302748), (72, 277519), (88, 227061), (99, 201832), (132, 151374), (198, 100916), (264, 75687), (396, 50458), (792, 25229)]