221450908

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3347}}^1$

素因数の和:3514

約数の個数: 48

約数和(自身を含む): 472469760

約数和(自身を除く): 251018852

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 139, 238, 278, 476, 556, 973, 1946, 2363, 3347, 3892, 4726, 6694, 9452, 13388, 16541, 23429, 33082, 46858, 56899, 66164, 93716, 113798, 227596, 398293, 465233, 796586, 930466, 1593172, 1860932, 3256631, 6513262, 7908961, 13026524, 15817922, 31635844, 55362727, 110725454, 221450908]

約数ペア:

[(1, 221450908), (2, 110725454), (4, 55362727), (7, 31635844), (14, 15817922), (17, 13026524), (28, 7908961), (34, 6513262), (68, 3256631), (119, 1860932), (139, 1593172), (238, 930466), (278, 796586), (476, 465233), (556, 398293), (973, 227596), (1946, 113798), (2363, 93716), (3347, 66164), (3892, 56899), (4726, 46858), (6694, 33082), (9452, 23429), (13388, 16541)]