20645334

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10333}}^1$

素因数の和:10381

約数の個数: 32

約数和(自身を含む): 47123040

約数和(自身を除く): 26477706

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10333, 20666, 30999, 61998, 92997, 185994, 278991, 382321, 557982, 764642, 1146963, 2293926, 3440889, 6881778, 10322667, 20645334]

約数ペア:

[(1, 20645334), (2, 10322667), (3, 6881778), (6, 3440889), (9, 2293926), (18, 1146963), (27, 764642), (37, 557982), (54, 382321), (74, 278991), (111, 185994), (222, 92997), (333, 61998), (666, 30999), (999, 20666), (1998, 10333)]