20211388515

素因数分解:

$3^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1\times {\mathrm{3359}}^1$

素因数の和:3638

約数の個数: 80

約数和(自身を含む): 36883123200

約数和(自身を除く): 16671734685

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 83, 135, 179, 249, 405, 415, 537, 747, 895, 1245, 1611, 2241, 2685, 3359, 3735, 4833, 6723, 8055, 10077, 11205, 14499, 14857, 16795, 24165, 30231, 33615, 44571, 50385, 72495, 74285, 90693, 133713, 151155, 222855, 272079, 278797, 401139, 453465, 601261, 668565, 836391, 1203417, 1360395, 1393985, 1803783, 2005695, 2509173, 3006305, 4181955, 5411349, 6017085, 7527519, 9018915, 12545865, 16234047, 22582557, 27056745, 37637595, 48702141, 49904663, 81170235, 112912785, 149713989, 243510705, 249523315, 449141967, 748569945, 1347425901, 2245709835, 4042277703, 6737129505, 20211388515]

約数ペア:

[(1, 20211388515), (3, 6737129505), (5, 4042277703), (9, 2245709835), (15, 1347425901), (27, 748569945), (45, 449141967), (81, 249523315), (83, 243510705), (135, 149713989), (179, 112912785), (249, 81170235), (405, 49904663), (415, 48702141), (537, 37637595), (747, 27056745), (895, 22582557), (1245, 16234047), (1611, 12545865), (2241, 9018915), (2685, 7527519), (3359, 6017085), (3735, 5411349), (4833, 4181955), (6723, 3006305), (8055, 2509173), (10077, 2005695), (11205, 1803783), (14499, 1393985), (14857, 1360395), (16795, 1203417), (24165, 836391), (30231, 668565), (33615, 601261), (44571, 453465), (50385, 401139), (72495, 278797), (74285, 272079), (90693, 222855), (133713, 151155)]