21691722

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 48996864

約数和(自身を除く): 27305142

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 61, 78, 94, 97, 122, 141, 183, 194, 282, 291, 366, 582, 611, 793, 1222, 1261, 1586, 1833, 2379, 2522, 2867, 3666, 3783, 4559, 4758, 5734, 5917, 7566, 8601, 9118, 11834, 13677, 17202, 17751, 27354, 35502, 37271, 59267, 74542, 76921, 111813, 118534, 153842, 177801, 223626, 230763, 278099, 355602, 461526, 556198, 834297, 1668594, 3615287, 7230574, 10845861, 21691722]

約数ペア:

[(1, 21691722), (2, 10845861), (3, 7230574), (6, 3615287), (13, 1668594), (26, 834297), (39, 556198), (47, 461526), (61, 355602), (78, 278099), (94, 230763), (97, 223626), (122, 177801), (141, 153842), (183, 118534), (194, 111813), (282, 76921), (291, 74542), (366, 59267), (582, 37271), (611, 35502), (793, 27354), (1222, 17751), (1261, 17202), (1586, 13677), (1833, 11834), (2379, 9118), (2522, 8601), (2867, 7566), (3666, 5917), (3783, 5734), (4559, 4758)]