851865

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 1696320

約数和(自身を除く): 844455

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 61, 95, 105, 133, 147, 183, 245, 285, 305, 399, 427, 665, 735, 915, 931, 1159, 1281, 1995, 2135, 2793, 2989, 3477, 4655, 5795, 6405, 8113, 8967, 13965, 14945, 17385, 24339, 40565, 44835, 56791, 121695, 170373, 283955, 851865]

約数ペア:

[(1, 851865), (3, 283955), (5, 170373), (7, 121695), (15, 56791), (19, 44835), (21, 40565), (35, 24339), (49, 17385), (57, 14945), (61, 13965), (95, 8967), (105, 8113), (133, 6405), (147, 5795), (183, 4655), (245, 3477), (285, 2989), (305, 2793), (399, 2135), (427, 1995), (665, 1281), (735, 1159), (915, 931)]