18890648

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4621}}^1$

素因数の和:4707

約数の個数: 32

約数和(自身を含む): 41043360

約数和(自身を除く): 22152712

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 4621, 9242, 18484, 32347, 36968, 64694, 129388, 258776, 337333, 674666, 1349332, 2361331, 2698664, 4722662, 9445324, 18890648]

約数ペア:

[(1, 18890648), (2, 9445324), (4, 4722662), (7, 2698664), (8, 2361331), (14, 1349332), (28, 674666), (56, 337333), (73, 258776), (146, 129388), (292, 64694), (511, 36968), (584, 32347), (1022, 18484), (2044, 9242), (4088, 4621)]