21366130

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 18677390

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 439, 785, 878, 1570, 2195, 4390, 4867, 9734, 13609, 24335, 27218, 48670, 68045, 68923, 136090, 137846, 344615, 689230, 2136613, 4273226, 10683065, 21366130]

約数ペア:

[(1, 21366130), (2, 10683065), (5, 4273226), (10, 2136613), (31, 689230), (62, 344615), (155, 137846), (157, 136090), (310, 68923), (314, 68045), (439, 48670), (785, 27218), (878, 24335), (1570, 13609), (2195, 9734), (4390, 4867)]