18741690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1721}}^1$

素因数の和:1756

約数の個数: 72

約数和(自身を含む): 53592084

約数和(自身を除く): 34850394

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1721, 1815, 2178, 3442, 3630, 5163, 5445, 8605, 10326, 10890, 15489, 17210, 18931, 25815, 30978, 37862, 51630, 56793, 77445, 94655, 113586, 154890, 170379, 189310, 208241, 283965, 340758, 416482, 567930, 624723, 851895, 1041205, 1249446, 1703790, 1874169, 2082410, 3123615, 3748338, 6247230, 9370845, 18741690]

約数ペア:

[(1, 18741690), (2, 9370845), (3, 6247230), (5, 3748338), (6, 3123615), (9, 2082410), (10, 1874169), (11, 1703790), (15, 1249446), (18, 1041205), (22, 851895), (30, 624723), (33, 567930), (45, 416482), (55, 340758), (66, 283965), (90, 208241), (99, 189310), (110, 170379), (121, 154890), (165, 113586), (198, 94655), (242, 77445), (330, 56793), (363, 51630), (495, 37862), (605, 30978), (726, 25815), (990, 18931), (1089, 17210), (1210, 15489), (1721, 10890), (1815, 10326), (2178, 8605), (3442, 5445), (3630, 5163)]