21183750

素因数分解:

$2^1\times 3^2\times 5^4\times 7^1\times {\mathrm{269}}^1$

素因数の和:304

約数の個数: 120

約数和(自身を含む): 65791440

約数和(自身を除く): 44607690

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 125, 126, 150, 175, 210, 225, 250, 269, 315, 350, 375, 450, 525, 538, 625, 630, 750, 807, 875, 1050, 1125, 1250, 1345, 1575, 1614, 1750, 1875, 1883, 2250, 2421, 2625, 2690, 3150, 3750, 3766, 4035, 4375, 4842, 5250, 5625, 5649, 6725, 7875, 8070, 8750, 9415, 11250, 11298, 12105, 13125, 13450, 15750, 16947, 18830, 20175, 24210, 26250, 28245, 33625, 33894, 39375, 40350, 47075, 56490, 60525, 67250, 78750, 84735, 94150, 100875, 121050, 141225, 168125, 169470, 201750, 235375, 282450, 302625, 336250, 423675, 470750, 504375, 605250, 706125, 847350, 1008750, 1176875, 1412250, 1513125, 2118375, 2353750, 3026250, 3530625, 4236750, 7061250, 10591875, 21183750]

約数ペア:

[(1, 21183750), (2, 10591875), (3, 7061250), (5, 4236750), (6, 3530625), (7, 3026250), (9, 2353750), (10, 2118375), (14, 1513125), (15, 1412250), (18, 1176875), (21, 1008750), (25, 847350), (30, 706125), (35, 605250), (42, 504375), (45, 470750), (50, 423675), (63, 336250), (70, 302625), (75, 282450), (90, 235375), (105, 201750), (125, 169470), (126, 168125), (150, 141225), (175, 121050), (210, 100875), (225, 94150), (250, 84735), (269, 78750), (315, 67250), (350, 60525), (375, 56490), (450, 47075), (525, 40350), (538, 39375), (625, 33894), (630, 33625), (750, 28245), (807, 26250), (875, 24210), (1050, 20175), (1125, 18830), (1250, 16947), (1345, 15750), (1575, 13450), (1614, 13125), (1750, 12105), (1875, 11298), (1883, 11250), (2250, 9415), (2421, 8750), (2625, 8070), (2690, 7875), (3150, 6725), (3750, 5649), (3766, 5625), (4035, 5250), (4375, 4842)]