25008921

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1229}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 46051200

約数和(自身を除く): 21042279

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 1229, 2261, 2907, 3687, 6783, 8603, 11061, 20349, 20893, 23351, 25809, 62679, 70053, 77427, 146251, 163457, 188037, 210159, 396967, 438753, 490371, 1190901, 1316259, 1471113, 2778769, 3572703, 8336307, 25008921]

約数ペア:

[(1, 25008921), (3, 8336307), (7, 3572703), (9, 2778769), (17, 1471113), (19, 1316259), (21, 1190901), (51, 490371), (57, 438753), (63, 396967), (119, 210159), (133, 188037), (153, 163457), (171, 146251), (323, 77427), (357, 70053), (399, 62679), (969, 25809), (1071, 23351), (1197, 20893), (1229, 20349), (2261, 11061), (2907, 8603), (3687, 6783)]