20542977

素因数分解:

$3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{929}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 17371263

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 567, 819, 929, 1053, 1701, 2457, 2787, 3159, 6503, 7371, 8361, 12077, 19509, 22113, 25083, 36231, 58527, 75249, 84539, 108693, 175581, 225747, 253617, 326079, 526743, 760851, 978237, 1580229, 2282553, 2934711, 6847659, 20542977]

約数ペア:

[(1, 20542977), (3, 6847659), (7, 2934711), (9, 2282553), (13, 1580229), (21, 978237), (27, 760851), (39, 526743), (63, 326079), (81, 253617), (91, 225747), (117, 175581), (189, 108693), (243, 84539), (273, 75249), (351, 58527), (567, 36231), (819, 25083), (929, 22113), (1053, 19509), (1701, 12077), (2457, 8361), (2787, 7371), (3159, 6503)]