21082068

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{311}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 40244652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 269, 311, 538, 622, 807, 933, 1076, 1244, 1614, 1866, 1883, 2177, 2421, 2799, 3228, 3732, 3766, 4354, 4842, 5598, 5649, 6531, 7532, 8708, 9684, 11196, 11298, 13062, 16947, 19593, 22596, 26124, 33894, 39186, 67788, 78372, 83659, 167318, 250977, 334636, 501954, 585613, 752931, 1003908, 1171226, 1505862, 1756839, 2342452, 3011724, 3513678, 5270517, 7027356, 10541034, 21082068]

約数ペア:

[(1, 21082068), (2, 10541034), (3, 7027356), (4, 5270517), (6, 3513678), (7, 3011724), (9, 2342452), (12, 1756839), (14, 1505862), (18, 1171226), (21, 1003908), (28, 752931), (36, 585613), (42, 501954), (63, 334636), (84, 250977), (126, 167318), (252, 83659), (269, 78372), (311, 67788), (538, 39186), (622, 33894), (807, 26124), (933, 22596), (1076, 19593), (1244, 16947), (1614, 13062), (1866, 11298), (1883, 11196), (2177, 9684), (2421, 8708), (2799, 7532), (3228, 6531), (3732, 5649), (3766, 5598), (4354, 4842)]