21138372

素因数分解:

$2^2\times 3^2\times {\mathrm{601}}^1\times {\mathrm{977}}^1$

素因数の和:1588

約数の個数: 36

約数和(自身を含む): 53576796

約数和(自身を除く): 32438424

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 601, 977, 1202, 1803, 1954, 2404, 2931, 3606, 3908, 5409, 5862, 7212, 8793, 10818, 11724, 17586, 21636, 35172, 587177, 1174354, 1761531, 2348708, 3523062, 5284593, 7046124, 10569186, 21138372]

約数ペア:

[(1, 21138372), (2, 10569186), (3, 7046124), (4, 5284593), (6, 3523062), (9, 2348708), (12, 1761531), (18, 1174354), (36, 587177), (601, 35172), (977, 21636), (1202, 17586), (1803, 11724), (1954, 10818), (2404, 8793), (2931, 7212), (3606, 5862), (3908, 5409)]