21716715

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3313}}^1$

素因数の和:3363

約数の個数: 32

約数和(自身を含む): 38177280

約数和(自身を除く): 16460565

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3313, 6555, 9939, 16565, 49695, 62947, 76199, 188841, 228597, 314735, 380995, 944205, 1142985, 1447781, 4343343, 7238905, 21716715]

約数ペア:

[(1, 21716715), (3, 7238905), (5, 4343343), (15, 1447781), (19, 1142985), (23, 944205), (57, 380995), (69, 314735), (95, 228597), (115, 188841), (285, 76199), (345, 62947), (437, 49695), (1311, 16565), (2185, 9939), (3313, 6555)]