20851362

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:572

約数の個数: 72

約数和(自身を含む): 53778816

約数和(自身を除く): 32927454

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 49, 63, 94, 98, 126, 141, 147, 282, 294, 329, 423, 441, 503, 658, 846, 882, 987, 1006, 1509, 1974, 2303, 2961, 3018, 3521, 4527, 4606, 5922, 6909, 7042, 9054, 10563, 13818, 20727, 21126, 23641, 24647, 31689, 41454, 47282, 49294, 63378, 70923, 73941, 141846, 147882, 165487, 212769, 221823, 330974, 425538, 443646, 496461, 992922, 1158409, 1489383, 2316818, 2978766, 3475227, 6950454, 10425681, 20851362]

約数ペア:

[(1, 20851362), (2, 10425681), (3, 6950454), (6, 3475227), (7, 2978766), (9, 2316818), (14, 1489383), (18, 1158409), (21, 992922), (42, 496461), (47, 443646), (49, 425538), (63, 330974), (94, 221823), (98, 212769), (126, 165487), (141, 147882), (147, 141846), (282, 73941), (294, 70923), (329, 63378), (423, 49294), (441, 47282), (503, 41454), (658, 31689), (846, 24647), (882, 23641), (987, 21126), (1006, 20727), (1509, 13818), (1974, 10563), (2303, 9054), (2961, 7042), (3018, 6909), (3521, 5922), (4527, 4606)]