9899912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 22118400

約数和(自身を除く): 12218488

約数列:

[1, 2, 4, 8, 11, 19, 22, 31, 38, 44, 62, 76, 88, 124, 152, 191, 209, 248, 341, 382, 418, 589, 682, 764, 836, 1178, 1364, 1528, 1672, 2101, 2356, 2728, 3629, 4202, 4712, 5921, 6479, 7258, 8404, 11842, 12958, 14516, 16808, 23684, 25916, 29032, 39919, 47368, 51832, 65131, 79838, 112499, 130262, 159676, 224998, 260524, 319352, 449996, 521048, 899992, 1237489, 2474978, 4949956, 9899912]

約数ペア:

[(1, 9899912), (2, 4949956), (4, 2474978), (8, 1237489), (11, 899992), (19, 521048), (22, 449996), (31, 319352), (38, 260524), (44, 224998), (62, 159676), (76, 130262), (88, 112499), (124, 79838), (152, 65131), (191, 51832), (209, 47368), (248, 39919), (341, 29032), (382, 25916), (418, 23684), (589, 16808), (682, 14516), (764, 12958), (836, 11842), (1178, 8404), (1364, 7258), (1528, 6479), (1672, 5921), (2101, 4712), (2356, 4202), (2728, 3629)]