20161217984

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{404389}}^1$

素因数の和:404461

約数の個数: 56

約数和(自身を含む): 43140325200

約数和(自身を除く): 22979107216

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 152, 164, 304, 328, 608, 656, 779, 1216, 1312, 1558, 2624, 3116, 6232, 12464, 24928, 49856, 404389, 808778, 1617556, 3235112, 6470224, 7683391, 12940448, 15366782, 16579949, 25880896, 30733564, 33159898, 61467128, 66319796, 122934256, 132639592, 245868512, 265279184, 315019031, 491737024, 530558368, 630038062, 1061116736, 1260076124, 2520152248, 5040304496, 10080608992, 20161217984]

約数ペア:

[(1, 20161217984), (2, 10080608992), (4, 5040304496), (8, 2520152248), (16, 1260076124), (19, 1061116736), (32, 630038062), (38, 530558368), (41, 491737024), (64, 315019031), (76, 265279184), (82, 245868512), (152, 132639592), (164, 122934256), (304, 66319796), (328, 61467128), (608, 33159898), (656, 30733564), (779, 25880896), (1216, 16579949), (1312, 15366782), (1558, 12940448), (2624, 7683391), (3116, 6470224), (6232, 3235112), (12464, 1617556), (24928, 808778), (49856, 404389)]