21534562

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 39427200

約数和(自身を除く): 17892638

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1109, 1387, 2218, 2774, 7763, 9709, 15526, 19418, 21071, 42142, 80957, 147497, 161914, 294994, 566699, 1133398, 1538183, 3076366, 10767281, 21534562]

約数ペア:

[(1, 21534562), (2, 10767281), (7, 3076366), (14, 1538183), (19, 1133398), (38, 566699), (73, 294994), (133, 161914), (146, 147497), (266, 80957), (511, 42142), (1022, 21071), (1109, 19418), (1387, 15526), (2218, 9709), (2774, 7763)]