19091248

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1619}}^1$

素因数の和:1705

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 21888272

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 176, 268, 536, 737, 1072, 1474, 1619, 2948, 3238, 5896, 6476, 11792, 12952, 17809, 25904, 35618, 71236, 108473, 142472, 216946, 284944, 433892, 867784, 1193203, 1735568, 2386406, 4772812, 9545624, 19091248]

約数ペア:

[(1, 19091248), (2, 9545624), (4, 4772812), (8, 2386406), (11, 1735568), (16, 1193203), (22, 867784), (44, 433892), (67, 284944), (88, 216946), (134, 142472), (176, 108473), (268, 71236), (536, 35618), (737, 25904), (1072, 17809), (1474, 12952), (1619, 11792), (2948, 6476), (3238, 5896)]