201681921

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^2\times {\mathrm{89}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 326851200

約数和(自身を除く): 125169279

約数列:

[1, 3, 7, 21, 29, 61, 87, 89, 183, 203, 267, 427, 609, 623, 1281, 1769, 1869, 2581, 3721, 5307, 5429, 7743, 11163, 12383, 16287, 18067, 26047, 37149, 38003, 54201, 78141, 107909, 114009, 157441, 323727, 331169, 472323, 755363, 993507, 1102087, 2266089, 2318183, 3306261, 6954549, 9603901, 28811703, 67227307, 201681921]

約数ペア:

[(1, 201681921), (3, 67227307), (7, 28811703), (21, 9603901), (29, 6954549), (61, 3306261), (87, 2318183), (89, 2266089), (183, 1102087), (203, 993507), (267, 755363), (427, 472323), (609, 331169), (623, 323727), (1281, 157441), (1769, 114009), (1869, 107909), (2581, 78141), (3721, 54201), (5307, 38003), (5429, 37149), (7743, 26047), (11163, 18067), (12383, 16287)]