21237012

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:342

約数の個数: 96

約数和(自身を含む): 59875200

約数和(自身を除く): 38638188

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 43, 51, 54, 68, 86, 102, 108, 129, 153, 172, 204, 258, 269, 306, 387, 459, 516, 538, 612, 731, 774, 807, 918, 1076, 1161, 1462, 1548, 1614, 1836, 2193, 2322, 2421, 2924, 3228, 4386, 4573, 4644, 4842, 6579, 7263, 8772, 9146, 9684, 11567, 13158, 13719, 14526, 18292, 19737, 23134, 26316, 27438, 29052, 34701, 39474, 41157, 46268, 54876, 69402, 78948, 82314, 104103, 123471, 138804, 164628, 196639, 208206, 246942, 312309, 393278, 416412, 493884, 589917, 624618, 786556, 1179834, 1249236, 1769751, 2359668, 3539502, 5309253, 7079004, 10618506, 21237012]

約数ペア:

[(1, 21237012), (2, 10618506), (3, 7079004), (4, 5309253), (6, 3539502), (9, 2359668), (12, 1769751), (17, 1249236), (18, 1179834), (27, 786556), (34, 624618), (36, 589917), (43, 493884), (51, 416412), (54, 393278), (68, 312309), (86, 246942), (102, 208206), (108, 196639), (129, 164628), (153, 138804), (172, 123471), (204, 104103), (258, 82314), (269, 78948), (306, 69402), (387, 54876), (459, 46268), (516, 41157), (538, 39474), (612, 34701), (731, 29052), (774, 27438), (807, 26316), (918, 23134), (1076, 19737), (1161, 18292), (1462, 14526), (1548, 13719), (1614, 13158), (1836, 11567), (2193, 9684), (2322, 9146), (2421, 8772), (2924, 7263), (3228, 6579), (4386, 4842), (4573, 4644)]