18972804

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 26975868

約数列:

[1, 2, 3, 4, 6, 12, 43, 83, 86, 129, 166, 172, 249, 258, 332, 443, 498, 516, 886, 996, 1329, 1772, 2658, 3569, 5316, 7138, 10707, 14276, 19049, 21414, 36769, 38098, 42828, 57147, 73538, 76196, 110307, 114294, 147076, 220614, 228588, 441228, 1581067, 3162134, 4743201, 6324268, 9486402, 18972804]

約数ペア:

[(1, 18972804), (2, 9486402), (3, 6324268), (4, 4743201), (6, 3162134), (12, 1581067), (43, 441228), (83, 228588), (86, 220614), (129, 147076), (166, 114294), (172, 110307), (249, 76196), (258, 73538), (332, 57147), (443, 42828), (498, 38098), (516, 36769), (886, 21414), (996, 19049), (1329, 14276), (1772, 10707), (2658, 7138), (3569, 5316)]