20353794

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 45868032

約数和(自身を除く): 25514238

約数列:

[1, 2, 3, 6, 17, 31, 34, 41, 51, 62, 82, 93, 102, 123, 157, 186, 246, 314, 471, 527, 697, 942, 1054, 1271, 1394, 1581, 2091, 2542, 2669, 3162, 3813, 4182, 4867, 5338, 6437, 7626, 8007, 9734, 12874, 14601, 16014, 19311, 21607, 29202, 38622, 43214, 64821, 82739, 109429, 129642, 165478, 199547, 218858, 248217, 328287, 399094, 496434, 598641, 656574, 1197282, 3392299, 6784598, 10176897, 20353794]

約数ペア:

[(1, 20353794), (2, 10176897), (3, 6784598), (6, 3392299), (17, 1197282), (31, 656574), (34, 598641), (41, 496434), (51, 399094), (62, 328287), (82, 248217), (93, 218858), (102, 199547), (123, 165478), (157, 129642), (186, 109429), (246, 82739), (314, 64821), (471, 43214), (527, 38622), (697, 29202), (942, 21607), (1054, 19311), (1271, 16014), (1394, 14601), (1581, 12874), (2091, 9734), (2542, 8007), (2669, 7626), (3162, 6437), (3813, 5338), (4182, 4867)]