21362170

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{709}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 40487040

約数和(自身を除く): 19124870

約数列:

[1, 2, 5, 10, 23, 46, 115, 131, 230, 262, 655, 709, 1310, 1418, 3013, 3545, 6026, 7090, 15065, 16307, 30130, 32614, 81535, 92879, 163070, 185758, 464395, 928790, 2136217, 4272434, 10681085, 21362170]

約数ペア:

[(1, 21362170), (2, 10681085), (5, 4272434), (10, 2136217), (23, 928790), (46, 464395), (115, 185758), (131, 163070), (230, 92879), (262, 81535), (655, 32614), (709, 30130), (1310, 16307), (1418, 15065), (3013, 7090), (3545, 6026)]