20849178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 50429952

約数和(自身を除く): 29580774

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 113, 138, 161, 191, 226, 322, 339, 382, 483, 573, 678, 791, 966, 1146, 1337, 1582, 2373, 2599, 2674, 4011, 4393, 4746, 5198, 7797, 8022, 8786, 13179, 15594, 18193, 21583, 26358, 30751, 36386, 43166, 54579, 61502, 64749, 92253, 109158, 129498, 151081, 184506, 302162, 453243, 496409, 906486, 992818, 1489227, 2978454, 3474863, 6949726, 10424589, 20849178]

約数ペア:

[(1, 20849178), (2, 10424589), (3, 6949726), (6, 3474863), (7, 2978454), (14, 1489227), (21, 992818), (23, 906486), (42, 496409), (46, 453243), (69, 302162), (113, 184506), (138, 151081), (161, 129498), (191, 109158), (226, 92253), (322, 64749), (339, 61502), (382, 54579), (483, 43166), (573, 36386), (678, 30751), (791, 26358), (966, 21583), (1146, 18193), (1337, 15594), (1582, 13179), (2373, 8786), (2599, 8022), (2674, 7797), (4011, 5198), (4393, 4746)]