21000980230

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{10859}}^1$

素因数の和:11049

約数の個数: 64

約数和(自身を含む): 39901377600

約数和(自身を除く): 18900397370

約数列:

[1, 2, 5, 10, 41, 53, 82, 89, 106, 178, 205, 265, 410, 445, 530, 890, 2173, 3649, 4346, 4717, 7298, 9434, 10859, 10865, 18245, 21718, 21730, 23585, 36490, 47170, 54295, 108590, 193397, 386794, 445219, 575527, 890438, 966451, 966985, 1151054, 1932902, 1933970, 2226095, 2877635, 4452190, 4832255, 5755270, 9664510, 23596607, 39624491, 47193214, 51221903, 79248982, 102443806, 117983035, 198122455, 235966070, 256109515, 396244910, 512219030, 2100098023, 4200196046, 10500490115, 21000980230]

約数ペア:

[(1, 21000980230), (2, 10500490115), (5, 4200196046), (10, 2100098023), (41, 512219030), (53, 396244910), (82, 256109515), (89, 235966070), (106, 198122455), (178, 117983035), (205, 102443806), (265, 79248982), (410, 51221903), (445, 47193214), (530, 39624491), (890, 23596607), (2173, 9664510), (3649, 5755270), (4346, 4832255), (4717, 4452190), (7298, 2877635), (9434, 2226095), (10859, 1933970), (10865, 1932902), (18245, 1151054), (21718, 966985), (21730, 966451), (23585, 890438), (36490, 575527), (47170, 445219), (54295, 386794), (108590, 193397)]