21554676

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 44489484

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 53, 66, 78, 79, 99, 106, 117, 132, 143, 156, 158, 159, 198, 212, 234, 237, 286, 316, 318, 396, 429, 468, 474, 477, 572, 583, 636, 689, 711, 858, 869, 948, 954, 1027, 1166, 1287, 1378, 1422, 1716, 1738, 1749, 1908, 2054, 2067, 2332, 2574, 2607, 2756, 2844, 3081, 3476, 3498, 4108, 4134, 4187, 5148, 5214, 5247, 6162, 6201, 6996, 7579, 7821, 8268, 8374, 9243, 10428, 10494, 11297, 12324, 12402, 12561, 15158, 15642, 16748, 18486, 20988, 22594, 22737, 24804, 25122, 30316, 31284, 33891, 36972, 37683, 45188, 45474, 46057, 50244, 54431, 67782, 68211, 75366, 90948, 92114, 101673, 108862, 135564, 136422, 138171, 150732, 163293, 184228, 203346, 217724, 272844, 276342, 326586, 406692, 414513, 489879, 552684, 598741, 653172, 829026, 979758, 1197482, 1658052, 1796223, 1959516, 2394964, 3592446, 5388669, 7184892, 10777338, 21554676]

約数ペア:

[(1, 21554676), (2, 10777338), (3, 7184892), (4, 5388669), (6, 3592446), (9, 2394964), (11, 1959516), (12, 1796223), (13, 1658052), (18, 1197482), (22, 979758), (26, 829026), (33, 653172), (36, 598741), (39, 552684), (44, 489879), (52, 414513), (53, 406692), (66, 326586), (78, 276342), (79, 272844), (99, 217724), (106, 203346), (117, 184228), (132, 163293), (143, 150732), (156, 138171), (158, 136422), (159, 135564), (198, 108862), (212, 101673), (234, 92114), (237, 90948), (286, 75366), (316, 68211), (318, 67782), (396, 54431), (429, 50244), (468, 46057), (474, 45474), (477, 45188), (572, 37683), (583, 36972), (636, 33891), (689, 31284), (711, 30316), (858, 25122), (869, 24804), (948, 22737), (954, 22594), (1027, 20988), (1166, 18486), (1287, 16748), (1378, 15642), (1422, 15158), (1716, 12561), (1738, 12402), (1749, 12324), (1908, 11297), (2054, 10494), (2067, 10428), (2332, 9243), (2574, 8374), (2607, 8268), (2756, 7821), (2844, 7579), (3081, 6996), (3476, 6201), (3498, 6162), (4108, 5247), (4134, 5214), (4187, 5148)]