21389250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 57058560

約数和(自身を除く): 35669310

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 79, 95, 114, 125, 150, 158, 190, 237, 250, 285, 361, 375, 395, 474, 475, 570, 722, 750, 790, 950, 1083, 1185, 1425, 1501, 1805, 1975, 2166, 2370, 2375, 2850, 3002, 3610, 3950, 4503, 4750, 5415, 5925, 7125, 7505, 9006, 9025, 9875, 10830, 11850, 14250, 15010, 18050, 19750, 22515, 27075, 28519, 29625, 37525, 45030, 45125, 54150, 57038, 59250, 75050, 85557, 90250, 112575, 135375, 142595, 171114, 187625, 225150, 270750, 285190, 375250, 427785, 562875, 712975, 855570, 1125750, 1425950, 2138925, 3564875, 4277850, 7129750, 10694625, 21389250]

約数ペア:

[(1, 21389250), (2, 10694625), (3, 7129750), (5, 4277850), (6, 3564875), (10, 2138925), (15, 1425950), (19, 1125750), (25, 855570), (30, 712975), (38, 562875), (50, 427785), (57, 375250), (75, 285190), (79, 270750), (95, 225150), (114, 187625), (125, 171114), (150, 142595), (158, 135375), (190, 112575), (237, 90250), (250, 85557), (285, 75050), (361, 59250), (375, 57038), (395, 54150), (474, 45125), (475, 45030), (570, 37525), (722, 29625), (750, 28519), (790, 27075), (950, 22515), (1083, 19750), (1185, 18050), (1425, 15010), (1501, 14250), (1805, 11850), (1975, 10830), (2166, 9875), (2370, 9025), (2375, 9006), (2850, 7505), (3002, 7125), (3610, 5925), (3950, 5415), (4503, 4750)]