20644344

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{40961}}^1$

素因数の和:40980

約数の個数: 48

約数和(自身を含む): 63900720

約数和(自身を除く): 43256376

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 40961, 81922, 122883, 163844, 245766, 286727, 327688, 368649, 491532, 573454, 737298, 860181, 983064, 1146908, 1474596, 1720362, 2293816, 2580543, 2949192, 3440724, 5161086, 6881448, 10322172, 20644344]

約数ペア:

[(1, 20644344), (2, 10322172), (3, 6881448), (4, 5161086), (6, 3440724), (7, 2949192), (8, 2580543), (9, 2293816), (12, 1720362), (14, 1474596), (18, 1146908), (21, 983064), (24, 860181), (28, 737298), (36, 573454), (42, 491532), (56, 368649), (63, 327688), (72, 286727), (84, 245766), (126, 163844), (168, 122883), (252, 81922), (504, 40961)]