21569674

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 39283200

約数和(自身を除く): 17713526

約数列:

[1, 2, 7, 14, 19, 38, 131, 133, 262, 266, 619, 917, 1238, 1834, 2489, 4333, 4978, 8666, 11761, 17423, 23522, 34846, 81089, 82327, 162178, 164654, 567623, 1135246, 1540691, 3081382, 10784837, 21569674]

約数ペア:

[(1, 21569674), (2, 10784837), (7, 3081382), (14, 1540691), (19, 1135246), (38, 567623), (131, 164654), (133, 162178), (262, 82327), (266, 81089), (619, 34846), (917, 23522), (1238, 17423), (1834, 11761), (2489, 8666), (4333, 4978)]