28317393

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 20429487

約数列:

[1, 3, 9, 13, 17, 23, 39, 51, 69, 117, 153, 207, 221, 299, 391, 619, 663, 897, 1173, 1857, 1989, 2691, 3519, 5083, 5571, 8047, 10523, 14237, 15249, 24141, 31569, 42711, 45747, 72423, 94707, 128133, 136799, 185081, 242029, 410397, 555243, 726087, 1231191, 1665729, 2178261, 3146377, 9439131, 28317393]

約数ペア:

[(1, 28317393), (3, 9439131), (9, 3146377), (13, 2178261), (17, 1665729), (23, 1231191), (39, 726087), (51, 555243), (69, 410397), (117, 242029), (153, 185081), (207, 136799), (221, 128133), (299, 94707), (391, 72423), (619, 45747), (663, 42711), (897, 31569), (1173, 24141), (1857, 15249), (1989, 14237), (2691, 10523), (3519, 8047), (5083, 5571)]