20898738

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3529}}^1$

素因数の和:3591

約数の個数: 48

約数和(自身を含む): 52865280

約数和(自身を除く): 31966542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 63, 94, 126, 141, 282, 329, 423, 658, 846, 987, 1974, 2961, 3529, 5922, 7058, 10587, 21174, 24703, 31761, 49406, 63522, 74109, 148218, 165863, 222327, 331726, 444654, 497589, 995178, 1161041, 1492767, 2322082, 2985534, 3483123, 6966246, 10449369, 20898738]

約数ペア:

[(1, 20898738), (2, 10449369), (3, 6966246), (6, 3483123), (7, 2985534), (9, 2322082), (14, 1492767), (18, 1161041), (21, 995178), (42, 497589), (47, 444654), (63, 331726), (94, 222327), (126, 165863), (141, 148218), (282, 74109), (329, 63522), (423, 49406), (658, 31761), (846, 24703), (987, 21174), (1974, 10587), (2961, 7058), (3529, 5922)]