18113992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 39312000

約数和(自身を除く): 21198008

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 89, 103, 104, 152, 178, 206, 247, 356, 412, 494, 712, 824, 988, 1157, 1339, 1691, 1957, 1976, 2314, 2678, 3382, 3914, 4628, 5356, 6764, 7828, 9167, 9256, 10712, 13528, 15656, 18334, 21983, 25441, 36668, 43966, 50882, 73336, 87932, 101764, 119171, 174173, 175864, 203528, 238342, 348346, 476684, 696692, 953368, 1393384, 2264249, 4528498, 9056996, 18113992]

約数ペア:

[(1, 18113992), (2, 9056996), (4, 4528498), (8, 2264249), (13, 1393384), (19, 953368), (26, 696692), (38, 476684), (52, 348346), (76, 238342), (89, 203528), (103, 175864), (104, 174173), (152, 119171), (178, 101764), (206, 87932), (247, 73336), (356, 50882), (412, 43966), (494, 36668), (712, 25441), (824, 21983), (988, 18334), (1157, 15656), (1339, 13528), (1691, 10712), (1957, 9256), (1976, 9167), (2314, 7828), (2678, 6764), (3382, 5356), (3914, 4628)]