19954386

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 45549504

約数和(自身を除く): 25595118

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 157, 207, 307, 314, 414, 471, 614, 921, 942, 1413, 1842, 2763, 2826, 3611, 5526, 7061, 7222, 10833, 14122, 21183, 21666, 32499, 42366, 48199, 63549, 64998, 96398, 127098, 144597, 289194, 433791, 867582, 1108577, 2217154, 3325731, 6651462, 9977193, 19954386]

約数ペア:

[(1, 19954386), (2, 9977193), (3, 6651462), (6, 3325731), (9, 2217154), (18, 1108577), (23, 867582), (46, 433791), (69, 289194), (138, 144597), (157, 127098), (207, 96398), (307, 64998), (314, 63549), (414, 48199), (471, 42366), (614, 32499), (921, 21666), (942, 21183), (1413, 14122), (1842, 10833), (2763, 7222), (2826, 7061), (3611, 5526)]