20955018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 50383872

約数和(自身を除く): 29428854

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 43, 82, 86, 123, 129, 246, 258, 283, 287, 301, 566, 574, 602, 849, 861, 903, 1698, 1722, 1763, 1806, 1981, 3526, 3962, 5289, 5943, 10578, 11603, 11886, 12169, 12341, 23206, 24338, 24682, 34809, 36507, 37023, 69618, 73014, 74046, 81221, 85183, 162442, 170366, 243663, 255549, 487326, 498929, 511098, 997858, 1496787, 2993574, 3492503, 6985006, 10477509, 20955018]

約数ペア:

[(1, 20955018), (2, 10477509), (3, 6985006), (6, 3492503), (7, 2993574), (14, 1496787), (21, 997858), (41, 511098), (42, 498929), (43, 487326), (82, 255549), (86, 243663), (123, 170366), (129, 162442), (246, 85183), (258, 81221), (283, 74046), (287, 73014), (301, 69618), (566, 37023), (574, 36507), (602, 34809), (849, 24682), (861, 24338), (903, 23206), (1698, 12341), (1722, 12169), (1763, 11886), (1806, 11603), (1981, 10578), (3526, 5943), (3962, 5289)]