28878633

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3251}}^1$

素因数の和:3314

約数の個数: 32

約数和(自身を含む): 49950720

約数和(自身を除く): 21072087

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 2961, 3251, 8883, 9753, 22757, 29259, 68271, 87777, 152797, 204813, 458391, 614439, 1069579, 1375173, 3208737, 4125519, 9626211, 28878633]

約数ペア:

[(1, 28878633), (3, 9626211), (7, 4125519), (9, 3208737), (21, 1375173), (27, 1069579), (47, 614439), (63, 458391), (141, 204813), (189, 152797), (329, 87777), (423, 68271), (987, 29259), (1269, 22757), (2961, 9753), (3251, 8883)]