421516473

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 684288000

約数和(自身を除く): 262771527

約数列:

[1, 3, 7, 21, 49, 53, 59, 131, 147, 159, 177, 343, 371, 393, 413, 917, 1029, 1113, 1239, 2597, 2751, 2891, 3127, 6419, 6943, 7729, 7791, 8673, 9381, 18179, 19257, 20237, 20829, 21889, 23187, 44933, 48601, 54103, 54537, 60711, 65667, 134799, 145803, 153223, 162309, 340207, 378721, 409637, 459669, 1020621, 1072561, 1136163, 1228911, 2381449, 2651047, 2867459, 3217683, 7144347, 7953141, 8602377, 20072213, 60216639, 140505491, 421516473]

約数ペア:

[(1, 421516473), (3, 140505491), (7, 60216639), (21, 20072213), (49, 8602377), (53, 7953141), (59, 7144347), (131, 3217683), (147, 2867459), (159, 2651047), (177, 2381449), (343, 1228911), (371, 1136163), (393, 1072561), (413, 1020621), (917, 459669), (1029, 409637), (1113, 378721), (1239, 340207), (2597, 162309), (2751, 153223), (2891, 145803), (3127, 134799), (6419, 65667), (6943, 60711), (7729, 54537), (7791, 54103), (8673, 48601), (9381, 44933), (18179, 23187), (19257, 21889), (20237, 20829)]