21237210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2843}}^1$

素因数の和:2939

約数の個数: 48

約数和(自身を含む): 55901664

約数和(自身を除く): 34664454

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 83, 90, 166, 249, 415, 498, 747, 830, 1245, 1494, 2490, 2843, 3735, 5686, 7470, 8529, 14215, 17058, 25587, 28430, 42645, 51174, 85290, 127935, 235969, 255870, 471938, 707907, 1179845, 1415814, 2123721, 2359690, 3539535, 4247442, 7079070, 10618605, 21237210]

約数ペア:

[(1, 21237210), (2, 10618605), (3, 7079070), (5, 4247442), (6, 3539535), (9, 2359690), (10, 2123721), (15, 1415814), (18, 1179845), (30, 707907), (45, 471938), (83, 255870), (90, 235969), (166, 127935), (249, 85290), (415, 51174), (498, 42645), (747, 28430), (830, 25587), (1245, 17058), (1494, 14215), (2490, 8529), (2843, 7470), (3735, 5686)]