20894904

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 61467120

約数和(自身を除く): 40572216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 43, 51, 68, 72, 86, 102, 129, 136, 153, 172, 204, 258, 306, 344, 387, 397, 408, 516, 612, 731, 774, 794, 1032, 1191, 1224, 1462, 1548, 1588, 2193, 2382, 2924, 3096, 3176, 3573, 4386, 4764, 5848, 6579, 6749, 7146, 8772, 9528, 13158, 13498, 14292, 17071, 17544, 20247, 26316, 26996, 28584, 34142, 40494, 51213, 52632, 53992, 60741, 68284, 80988, 102426, 121482, 136568, 153639, 161976, 204852, 242964, 290207, 307278, 409704, 485928, 580414, 614556, 870621, 1160828, 1229112, 1741242, 2321656, 2611863, 3482484, 5223726, 6964968, 10447452, 20894904]

約数ペア:

[(1, 20894904), (2, 10447452), (3, 6964968), (4, 5223726), (6, 3482484), (8, 2611863), (9, 2321656), (12, 1741242), (17, 1229112), (18, 1160828), (24, 870621), (34, 614556), (36, 580414), (43, 485928), (51, 409704), (68, 307278), (72, 290207), (86, 242964), (102, 204852), (129, 161976), (136, 153639), (153, 136568), (172, 121482), (204, 102426), (258, 80988), (306, 68284), (344, 60741), (387, 53992), (397, 52632), (408, 51213), (516, 40494), (612, 34142), (731, 28584), (774, 26996), (794, 26316), (1032, 20247), (1191, 17544), (1224, 17071), (1462, 14292), (1548, 13498), (1588, 13158), (2193, 9528), (2382, 8772), (2924, 7146), (3096, 6749), (3176, 6579), (3573, 5848), (4386, 4764)]