21222928

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 43407936

約数和(自身を除く): 22185008

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 101, 184, 202, 368, 404, 571, 808, 1142, 1616, 2284, 2323, 4568, 4646, 9136, 9292, 13133, 18584, 26266, 37168, 52532, 57671, 105064, 115342, 210128, 230684, 461368, 922736, 1326433, 2652866, 5305732, 10611464, 21222928]

約数ペア:

[(1, 21222928), (2, 10611464), (4, 5305732), (8, 2652866), (16, 1326433), (23, 922736), (46, 461368), (92, 230684), (101, 210128), (184, 115342), (202, 105064), (368, 57671), (404, 52532), (571, 37168), (808, 26266), (1142, 18584), (1616, 13133), (2284, 9292), (2323, 9136), (4568, 4646)]