198569987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 254707200

約数和(自身を除く): 56137213

約数列:

[1, 7, 11, 59, 77, 109, 401, 413, 649, 763, 1199, 2807, 4411, 4543, 6431, 8393, 23659, 30877, 43709, 45017, 70741, 165613, 260249, 305963, 480799, 495187, 1821743, 2578831, 3365593, 18051817, 28367141, 198569987]

約数ペア:

[(1, 198569987), (7, 28367141), (11, 18051817), (59, 3365593), (77, 2578831), (109, 1821743), (401, 495187), (413, 480799), (649, 305963), (763, 260249), (1199, 165613), (2807, 70741), (4411, 45017), (4543, 43709), (6431, 30877), (8393, 23659)]