21874468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 51609600

約数和(自身を除く): 29735132

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 31, 44, 58, 62, 77, 79, 116, 124, 154, 158, 203, 217, 308, 316, 319, 341, 406, 434, 553, 638, 682, 812, 868, 869, 899, 1106, 1276, 1364, 1738, 1798, 2212, 2233, 2291, 2387, 2449, 3476, 3596, 4466, 4582, 4774, 4898, 6083, 6293, 8932, 9164, 9548, 9796, 9889, 12166, 12586, 16037, 17143, 19778, 24332, 25172, 25201, 26939, 32074, 34286, 39556, 50402, 53878, 64148, 68572, 69223, 71021, 100804, 107756, 138446, 142042, 176407, 188573, 276892, 284084, 352814, 377146, 497147, 705628, 754292, 781231, 994294, 1562462, 1988588, 3124924, 5468617, 10937234, 21874468]

約数ペア:

[(1, 21874468), (2, 10937234), (4, 5468617), (7, 3124924), (11, 1988588), (14, 1562462), (22, 994294), (28, 781231), (29, 754292), (31, 705628), (44, 497147), (58, 377146), (62, 352814), (77, 284084), (79, 276892), (116, 188573), (124, 176407), (154, 142042), (158, 138446), (203, 107756), (217, 100804), (308, 71021), (316, 69223), (319, 68572), (341, 64148), (406, 53878), (434, 50402), (553, 39556), (638, 34286), (682, 32074), (812, 26939), (868, 25201), (869, 25172), (899, 24332), (1106, 19778), (1276, 17143), (1364, 16037), (1738, 12586), (1798, 12166), (2212, 9889), (2233, 9796), (2291, 9548), (2387, 9164), (2449, 8932), (3476, 6293), (3596, 6083), (4466, 4898), (4582, 4774)]