21549112

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{541}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 43706880

約数和(自身を除く): 22157768

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 383, 541, 766, 1082, 1532, 2164, 3064, 4328, 4979, 7033, 9958, 14066, 19916, 28132, 39832, 56264, 207203, 414406, 828812, 1657624, 2693639, 5387278, 10774556, 21549112]

約数ペア:

[(1, 21549112), (2, 10774556), (4, 5387278), (8, 2693639), (13, 1657624), (26, 828812), (52, 414406), (104, 207203), (383, 56264), (541, 39832), (766, 28132), (1082, 19916), (1532, 14066), (2164, 9958), (3064, 7033), (4328, 4979)]