21148995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10601}}^1$

素因数の和:10635

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 19562685

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10601, 31803, 53005, 74207, 159015, 201419, 222621, 371035, 604257, 1007095, 1113105, 1409933, 3021285, 4229799, 7049665, 21148995]

約数ペア:

[(1, 21148995), (3, 7049665), (5, 4229799), (7, 3021285), (15, 1409933), (19, 1113105), (21, 1007095), (35, 604257), (57, 371035), (95, 222621), (105, 201419), (133, 159015), (285, 74207), (399, 53005), (665, 31803), (1995, 10601)]