21851380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 48666240

約数和(自身を除く): 26814860

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 67, 92, 115, 134, 230, 268, 335, 460, 670, 709, 1340, 1418, 1541, 2836, 3082, 3545, 6164, 7090, 7705, 14180, 15410, 16307, 30820, 32614, 47503, 65228, 81535, 95006, 163070, 190012, 237515, 326140, 475030, 950060, 1092569, 2185138, 4370276, 5462845, 10925690, 21851380]

約数ペア:

[(1, 21851380), (2, 10925690), (4, 5462845), (5, 4370276), (10, 2185138), (20, 1092569), (23, 950060), (46, 475030), (67, 326140), (92, 237515), (115, 190012), (134, 163070), (230, 95006), (268, 81535), (335, 65228), (460, 47503), (670, 32614), (709, 30820), (1340, 16307), (1418, 15410), (1541, 14180), (2836, 7705), (3082, 7090), (3545, 6164)]