21422590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 46604160

約数和(自身を除く): 25181570

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 61, 70, 122, 145, 173, 203, 290, 305, 346, 406, 427, 610, 854, 865, 1015, 1211, 1730, 1769, 2030, 2135, 2422, 3538, 4270, 5017, 6055, 8845, 10034, 10553, 12110, 12383, 17690, 21106, 24766, 25085, 35119, 50170, 52765, 61915, 70238, 73871, 105530, 123830, 147742, 175595, 306037, 351190, 369355, 612074, 738710, 1530185, 2142259, 3060370, 4284518, 10711295, 21422590]

約数ペア:

[(1, 21422590), (2, 10711295), (5, 4284518), (7, 3060370), (10, 2142259), (14, 1530185), (29, 738710), (35, 612074), (58, 369355), (61, 351190), (70, 306037), (122, 175595), (145, 147742), (173, 123830), (203, 105530), (290, 73871), (305, 70238), (346, 61915), (406, 52765), (427, 50170), (610, 35119), (854, 25085), (865, 24766), (1015, 21106), (1211, 17690), (1730, 12383), (1769, 12110), (2030, 10553), (2135, 10034), (2422, 8845), (3538, 6055), (4270, 5017)]