20443384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 24795656

約数列:

[1, 2, 4, 8, 13, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 221, 248, 373, 403, 442, 527, 746, 806, 884, 1054, 1492, 1612, 1768, 2108, 2984, 3224, 4216, 4849, 6341, 6851, 9698, 11563, 12682, 13702, 19396, 23126, 25364, 27404, 38792, 46252, 50728, 54808, 82433, 92504, 150319, 164866, 196571, 300638, 329732, 393142, 601276, 659464, 786284, 1202552, 1572568, 2555423, 5110846, 10221692, 20443384]

約数ペア:

[(1, 20443384), (2, 10221692), (4, 5110846), (8, 2555423), (13, 1572568), (17, 1202552), (26, 786284), (31, 659464), (34, 601276), (52, 393142), (62, 329732), (68, 300638), (104, 196571), (124, 164866), (136, 150319), (221, 92504), (248, 82433), (373, 54808), (403, 50728), (442, 46252), (527, 38792), (746, 27404), (806, 25364), (884, 23126), (1054, 19396), (1492, 13702), (1612, 12682), (1768, 11563), (2108, 9698), (2984, 6851), (3224, 6341), (4216, 4849)]