21264236

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 46539360

約数和(自身を除く): 25275124

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 53, 89, 92, 98, 106, 161, 178, 196, 212, 322, 356, 371, 623, 644, 742, 1127, 1219, 1246, 1484, 2047, 2254, 2438, 2492, 2597, 4094, 4361, 4508, 4717, 4876, 5194, 8188, 8533, 8722, 9434, 10388, 14329, 17066, 17444, 18868, 28658, 33019, 34132, 57316, 59731, 66038, 100303, 108491, 119462, 132076, 200606, 216982, 231133, 238924, 401212, 433964, 462266, 759437, 924532, 1518874, 3037748, 5316059, 10632118, 21264236]

約数ペア:

[(1, 21264236), (2, 10632118), (4, 5316059), (7, 3037748), (14, 1518874), (23, 924532), (28, 759437), (46, 462266), (49, 433964), (53, 401212), (89, 238924), (92, 231133), (98, 216982), (106, 200606), (161, 132076), (178, 119462), (196, 108491), (212, 100303), (322, 66038), (356, 59731), (371, 57316), (623, 34132), (644, 33019), (742, 28658), (1127, 18868), (1219, 17444), (1246, 17066), (1484, 14329), (2047, 10388), (2254, 9434), (2438, 8722), (2492, 8533), (2597, 8188), (4094, 5194), (4361, 4876), (4508, 4717)]