20721642

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{373}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 42653952

約数和(自身を除く): 21932310

約数列:

[1, 2, 3, 6, 47, 94, 141, 197, 282, 373, 394, 591, 746, 1119, 1182, 2238, 9259, 17531, 18518, 27777, 35062, 52593, 55554, 73481, 105186, 146962, 220443, 440886, 3453607, 6907214, 10360821, 20721642]

約数ペア:

[(1, 20721642), (2, 10360821), (3, 6907214), (6, 3453607), (47, 440886), (94, 220443), (141, 146962), (197, 105186), (282, 73481), (373, 55554), (394, 52593), (591, 35062), (746, 27777), (1119, 18518), (1182, 17531), (2238, 9259)]