19801078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{373}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 14666762

約数列:

[1, 2, 11, 19, 22, 38, 127, 209, 254, 373, 418, 746, 1397, 2413, 2794, 4103, 4826, 7087, 8206, 14174, 26543, 47371, 53086, 77957, 94742, 155914, 521081, 900049, 1042162, 1800098, 9900539, 19801078]

約数ペア:

[(1, 19801078), (2, 9900539), (11, 1800098), (19, 1042162), (22, 900049), (38, 521081), (127, 155914), (209, 94742), (254, 77957), (373, 53086), (418, 47371), (746, 26543), (1397, 14174), (2413, 8206), (2794, 7087), (4103, 4826)]