21908397

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 35407872

約数和(自身を除く): 13499475

約数列:

[1, 3, 7, 21, 23, 67, 69, 161, 201, 469, 483, 677, 1407, 1541, 2031, 4623, 4739, 10787, 14217, 15571, 32361, 45359, 46713, 108997, 136077, 317513, 326991, 952539, 1043257, 3129771, 7302799, 21908397]

約数ペア:

[(1, 21908397), (3, 7302799), (7, 3129771), (21, 1043257), (23, 952539), (67, 326991), (69, 317513), (161, 136077), (201, 108997), (469, 46713), (483, 45359), (677, 32361), (1407, 15571), (1541, 14217), (2031, 10787), (4623, 4739)]