21816902

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 14298298

約数列:

[1, 2, 19, 37, 38, 59, 74, 118, 263, 526, 703, 1121, 1406, 2183, 2242, 4366, 4997, 9731, 9994, 15517, 19462, 31034, 41477, 82954, 184889, 294823, 369778, 574129, 589646, 1148258, 10908451, 21816902]

約数ペア:

[(1, 21816902), (2, 10908451), (19, 1148258), (37, 589646), (38, 574129), (59, 369778), (74, 294823), (118, 184889), (263, 82954), (526, 41477), (703, 31034), (1121, 19462), (1406, 15517), (2183, 9994), (2242, 9731), (4366, 4997)]