21516318

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{877}}^1$

素因数の和:961

約数の個数: 48

約数和(自身を含む): 49308480

約数和(自身を除く): 27792162

約数列:

[1, 2, 3, 6, 9, 18, 29, 47, 58, 87, 94, 141, 174, 261, 282, 423, 522, 846, 877, 1363, 1754, 2631, 2726, 4089, 5262, 7893, 8178, 12267, 15786, 24534, 25433, 41219, 50866, 76299, 82438, 123657, 152598, 228897, 247314, 370971, 457794, 741942, 1195351, 2390702, 3586053, 7172106, 10758159, 21516318]

約数ペア:

[(1, 21516318), (2, 10758159), (3, 7172106), (6, 3586053), (9, 2390702), (18, 1195351), (29, 741942), (47, 457794), (58, 370971), (87, 247314), (94, 228897), (141, 152598), (174, 123657), (261, 82438), (282, 76299), (423, 50866), (522, 41219), (846, 25433), (877, 24534), (1363, 15786), (1754, 12267), (2631, 8178), (2726, 7893), (4089, 5262)]