19937448

素因数分解:

$2^3\times 3^3\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 55756800

約数和(自身を除く): 35819352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 241, 383, 482, 723, 766, 964, 1149, 1446, 1532, 1928, 2169, 2298, 2892, 3064, 3447, 4338, 4596, 5784, 6507, 6894, 8676, 9192, 10341, 13014, 13788, 17352, 20682, 26028, 27576, 41364, 52056, 82728, 92303, 184606, 276909, 369212, 553818, 738424, 830727, 1107636, 1661454, 2215272, 2492181, 3322908, 4984362, 6645816, 9968724, 19937448]

約数ペア:

[(1, 19937448), (2, 9968724), (3, 6645816), (4, 4984362), (6, 3322908), (8, 2492181), (9, 2215272), (12, 1661454), (18, 1107636), (24, 830727), (27, 738424), (36, 553818), (54, 369212), (72, 276909), (108, 184606), (216, 92303), (241, 82728), (383, 52056), (482, 41364), (723, 27576), (766, 26028), (964, 20682), (1149, 17352), (1446, 13788), (1532, 13014), (1928, 10341), (2169, 9192), (2298, 8676), (2892, 6894), (3064, 6507), (3447, 5784), (4338, 4596)]