18961544

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 24584056

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 71, 76, 133, 142, 152, 251, 266, 284, 497, 502, 532, 568, 994, 1004, 1064, 1349, 1757, 1988, 2008, 2698, 3514, 3976, 4769, 5396, 7028, 9443, 9538, 10792, 14056, 17821, 18886, 19076, 33383, 35642, 37772, 38152, 66766, 71284, 75544, 124747, 133532, 142568, 249494, 267064, 338599, 498988, 677198, 997976, 1354396, 2370193, 2708792, 4740386, 9480772, 18961544]

約数ペア:

[(1, 18961544), (2, 9480772), (4, 4740386), (7, 2708792), (8, 2370193), (14, 1354396), (19, 997976), (28, 677198), (38, 498988), (56, 338599), (71, 267064), (76, 249494), (133, 142568), (142, 133532), (152, 124747), (251, 75544), (266, 71284), (284, 66766), (497, 38152), (502, 37772), (532, 35642), (568, 33383), (994, 19076), (1004, 18886), (1064, 17821), (1349, 14056), (1757, 10792), (1988, 9538), (2008, 9443), (2698, 7028), (3514, 5396), (3976, 4769)]