20789648

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6217}}^1$

素因数の和:6255

約数の個数: 40

約数和(自身を含む): 46261920

約数和(自身を除く): 25472272

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6217, 12434, 24868, 49736, 68387, 99472, 118123, 136774, 236246, 273548, 472492, 547096, 944984, 1094192, 1299353, 1889968, 2598706, 5197412, 10394824, 20789648]

約数ペア:

[(1, 20789648), (2, 10394824), (4, 5197412), (8, 2598706), (11, 1889968), (16, 1299353), (19, 1094192), (22, 944984), (38, 547096), (44, 472492), (76, 273548), (88, 236246), (152, 136774), (176, 118123), (209, 99472), (304, 68387), (418, 49736), (836, 24868), (1672, 12434), (3344, 6217)]