21440895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3461}}^1$

素因数の和:3535

約数の個数: 32

約数和(自身を含む): 39882240

約数和(自身を除く): 18441345

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 105, 177, 295, 413, 885, 1239, 2065, 3461, 6195, 10383, 17305, 24227, 51915, 72681, 121135, 204199, 363405, 612597, 1020995, 1429393, 3062985, 4288179, 7146965, 21440895]

約数ペア:

[(1, 21440895), (3, 7146965), (5, 4288179), (7, 3062985), (15, 1429393), (21, 1020995), (35, 612597), (59, 363405), (105, 204199), (177, 121135), (295, 72681), (413, 51915), (885, 24227), (1239, 17305), (2065, 10383), (3461, 6195)]