19988358

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4201}}^1$

素因数の和:4280

約数の個数: 32

約数和(自身を含む): 43768032

約数和(自身を除く): 23779674

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 4201, 4758, 8402, 12603, 25206, 54613, 109226, 163839, 256261, 327678, 512522, 768783, 1537566, 3331393, 6662786, 9994179, 19988358]

約数ペア:

[(1, 19988358), (2, 9994179), (3, 6662786), (6, 3331393), (13, 1537566), (26, 768783), (39, 512522), (61, 327678), (78, 256261), (122, 163839), (183, 109226), (366, 54613), (793, 25206), (1586, 12603), (2379, 8402), (4201, 4758)]