19704615

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 41368320

約数和(自身を除く): 21663705

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 35, 49, 51, 57, 83, 85, 95, 105, 119, 133, 147, 245, 249, 255, 285, 323, 357, 399, 415, 581, 595, 665, 735, 833, 931, 969, 1245, 1411, 1577, 1615, 1743, 1785, 1995, 2261, 2499, 2793, 2905, 4067, 4165, 4233, 4655, 4731, 4845, 6783, 7055, 7885, 8715, 9877, 11039, 11305, 12201, 12495, 13965, 15827, 20335, 21165, 23655, 26809, 29631, 33117, 33915, 47481, 49385, 55195, 61005, 69139, 77273, 79135, 80427, 134045, 148155, 165585, 187663, 207417, 231819, 237405, 345695, 386365, 402135, 562989, 938315, 1037085, 1159095, 1313641, 2814945, 3940923, 6568205, 19704615]

約数ペア:

[(1, 19704615), (3, 6568205), (5, 3940923), (7, 2814945), (15, 1313641), (17, 1159095), (19, 1037085), (21, 938315), (35, 562989), (49, 402135), (51, 386365), (57, 345695), (83, 237405), (85, 231819), (95, 207417), (105, 187663), (119, 165585), (133, 148155), (147, 134045), (245, 80427), (249, 79135), (255, 77273), (285, 69139), (323, 61005), (357, 55195), (399, 49385), (415, 47481), (581, 33915), (595, 33117), (665, 29631), (735, 26809), (833, 23655), (931, 21165), (969, 20335), (1245, 15827), (1411, 13965), (1577, 12495), (1615, 12201), (1743, 11305), (1785, 11039), (1995, 9877), (2261, 8715), (2499, 7885), (2793, 7055), (2905, 6783), (4067, 4845), (4165, 4731), (4233, 4655)]