21956260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{809}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 27032540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 590, 809, 1180, 1357, 1618, 2714, 3236, 4045, 5428, 6785, 8090, 13570, 16180, 18607, 27140, 37214, 47731, 74428, 93035, 95462, 186070, 190924, 238655, 372140, 477310, 954620, 1097813, 2195626, 4391252, 5489065, 10978130, 21956260]

約数ペア:

[(1, 21956260), (2, 10978130), (4, 5489065), (5, 4391252), (10, 2195626), (20, 1097813), (23, 954620), (46, 477310), (59, 372140), (92, 238655), (115, 190924), (118, 186070), (230, 95462), (236, 93035), (295, 74428), (460, 47731), (590, 37214), (809, 27140), (1180, 18607), (1357, 16180), (1618, 13570), (2714, 8090), (3236, 6785), (4045, 5428)]