20955858

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 53111808

約数和(自身を除く): 32155950

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 67, 77, 134, 154, 201, 231, 402, 462, 469, 677, 737, 938, 1354, 1407, 1474, 2031, 2211, 2814, 4062, 4422, 4739, 5159, 7447, 9478, 10318, 14217, 14894, 15477, 22341, 28434, 30954, 44682, 45359, 52129, 90718, 104258, 136077, 156387, 272154, 312774, 317513, 498949, 635026, 952539, 997898, 1496847, 1905078, 2993694, 3492643, 6985286, 10477929, 20955858]

約数ペア:

[(1, 20955858), (2, 10477929), (3, 6985286), (6, 3492643), (7, 2993694), (11, 1905078), (14, 1496847), (21, 997898), (22, 952539), (33, 635026), (42, 498949), (66, 317513), (67, 312774), (77, 272154), (134, 156387), (154, 136077), (201, 104258), (231, 90718), (402, 52129), (462, 45359), (469, 44682), (677, 30954), (737, 28434), (938, 22341), (1354, 15477), (1407, 14894), (1474, 14217), (2031, 10318), (2211, 9478), (2814, 7447), (4062, 5159), (4422, 4739)]