21295599

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1055

約数の個数: 32

約数和(自身を含む): 33331200

約数和(自身を除く): 12035601

約数列:

[1, 3, 13, 19, 29, 39, 57, 87, 247, 377, 551, 741, 991, 1131, 1653, 2973, 7163, 12883, 18829, 21489, 28739, 38649, 56487, 86217, 244777, 373607, 546041, 734331, 1120821, 1638123, 7098533, 21295599]

約数ペア:

[(1, 21295599), (3, 7098533), (13, 1638123), (19, 1120821), (29, 734331), (39, 546041), (57, 373607), (87, 244777), (247, 86217), (377, 56487), (551, 38649), (741, 28739), (991, 21489), (1131, 18829), (1653, 12883), (2973, 7163)]