21871044

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2749}}^1$

素因数の和:2789

約数の個数: 72

約数和(自身を含む): 63063000

約数和(自身を除く): 41191956

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 2749, 3978, 5498, 7956, 8247, 10996, 16494, 24741, 32988, 35737, 46733, 49482, 71474, 93466, 98964, 107211, 140199, 142948, 186932, 214422, 280398, 321633, 420597, 428844, 560796, 607529, 643266, 841194, 1215058, 1286532, 1682388, 1822587, 2430116, 3645174, 5467761, 7290348, 10935522, 21871044]

約数ペア:

[(1, 21871044), (2, 10935522), (3, 7290348), (4, 5467761), (6, 3645174), (9, 2430116), (12, 1822587), (13, 1682388), (17, 1286532), (18, 1215058), (26, 841194), (34, 643266), (36, 607529), (39, 560796), (51, 428844), (52, 420597), (68, 321633), (78, 280398), (102, 214422), (117, 186932), (153, 142948), (156, 140199), (204, 107211), (221, 98964), (234, 93466), (306, 71474), (442, 49482), (468, 46733), (612, 35737), (663, 32988), (884, 24741), (1326, 16494), (1989, 10996), (2652, 8247), (2749, 7956), (3978, 5498)]