20259918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6991}}^1$

素因数の和:7029

約数の個数: 48

約数和(自身を含む): 52356096

約数和(自身を除く): 32096178

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898, 6991, 13982, 20973, 41946, 48937, 62919, 97874, 125838, 146811, 160793, 293622, 321586, 440433, 482379, 880866, 964758, 1125551, 1447137, 2251102, 2894274, 3376653, 6753306, 10129959, 20259918]

約数ペア:

[(1, 20259918), (2, 10129959), (3, 6753306), (6, 3376653), (7, 2894274), (9, 2251102), (14, 1447137), (18, 1125551), (21, 964758), (23, 880866), (42, 482379), (46, 440433), (63, 321586), (69, 293622), (126, 160793), (138, 146811), (161, 125838), (207, 97874), (322, 62919), (414, 48937), (483, 41946), (966, 20973), (1449, 13982), (2898, 6991)]