19874898

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 45729216

約数和(自身を除く): 25854318

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 61, 69, 122, 138, 183, 207, 366, 414, 549, 787, 1098, 1403, 1574, 2361, 2806, 4209, 4722, 7083, 8418, 12627, 14166, 18101, 25254, 36202, 48007, 54303, 96014, 108606, 144021, 162909, 288042, 325818, 432063, 864126, 1104161, 2208322, 3312483, 6624966, 9937449, 19874898]

約数ペア:

[(1, 19874898), (2, 9937449), (3, 6624966), (6, 3312483), (9, 2208322), (18, 1104161), (23, 864126), (46, 432063), (61, 325818), (69, 288042), (122, 162909), (138, 144021), (183, 108606), (207, 96014), (366, 54303), (414, 48007), (549, 36202), (787, 25254), (1098, 18101), (1403, 14166), (1574, 12627), (2361, 8418), (2806, 7083), (4209, 4722)]