21054735

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 96

約数和(自身を含む): 43051008

約数和(自身を除く): 21996273

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 43, 45, 65, 81, 93, 117, 129, 135, 155, 195, 215, 243, 279, 351, 387, 403, 405, 465, 559, 585, 645, 837, 1053, 1161, 1209, 1215, 1333, 1395, 1677, 1755, 1935, 2015, 2511, 2795, 3159, 3483, 3627, 3999, 4185, 5031, 5265, 5805, 6045, 6665, 7533, 8385, 10449, 10881, 11997, 12555, 15093, 15795, 17329, 17415, 18135, 19995, 25155, 32643, 35991, 37665, 45279, 51987, 52245, 54405, 59985, 75465, 86645, 97929, 107973, 135837, 155961, 163215, 179955, 226395, 259935, 323919, 467883, 489645, 539865, 679185, 779805, 1403649, 1619595, 2339415, 4210947, 7018245, 21054735]

約数ペア:

[(1, 21054735), (3, 7018245), (5, 4210947), (9, 2339415), (13, 1619595), (15, 1403649), (27, 779805), (31, 679185), (39, 539865), (43, 489645), (45, 467883), (65, 323919), (81, 259935), (93, 226395), (117, 179955), (129, 163215), (135, 155961), (155, 135837), (195, 107973), (215, 97929), (243, 86645), (279, 75465), (351, 59985), (387, 54405), (403, 52245), (405, 51987), (465, 45279), (559, 37665), (585, 35991), (645, 32643), (837, 25155), (1053, 19995), (1161, 18135), (1209, 17415), (1215, 17329), (1333, 15795), (1395, 15093), (1677, 12555), (1755, 11997), (1935, 10881), (2015, 10449), (2511, 8385), (2795, 7533), (3159, 6665), (3483, 6045), (3627, 5805), (3999, 5265), (4185, 5031)]