221619248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{10391}}^1$

素因数の和:10473

約数の個数: 40

約数和(自身を含む): 453590016

約数和(自身を除く): 231970768

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 1333, 2666, 5332, 10391, 10664, 20782, 21328, 41564, 83128, 166256, 322121, 446813, 644242, 893626, 1288484, 1787252, 2576968, 3574504, 5153936, 7149008, 13851203, 27702406, 55404812, 110809624, 221619248]

約数ペア:

[(1, 221619248), (2, 110809624), (4, 55404812), (8, 27702406), (16, 13851203), (31, 7149008), (43, 5153936), (62, 3574504), (86, 2576968), (124, 1787252), (172, 1288484), (248, 893626), (344, 644242), (496, 446813), (688, 322121), (1333, 166256), (2666, 83128), (5332, 41564), (10391, 21328), (10664, 20782)]