21970338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 48698496

約数和(自身を除く): 26728158

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 141, 169, 282, 338, 461, 507, 611, 922, 1014, 1222, 1383, 1833, 2766, 3666, 5993, 7943, 11986, 15886, 17979, 21667, 23829, 35958, 43334, 47658, 65001, 77909, 130002, 155818, 233727, 281671, 467454, 563342, 845013, 1690026, 3661723, 7323446, 10985169, 21970338]

約数ペア:

[(1, 21970338), (2, 10985169), (3, 7323446), (6, 3661723), (13, 1690026), (26, 845013), (39, 563342), (47, 467454), (78, 281671), (94, 233727), (141, 155818), (169, 130002), (282, 77909), (338, 65001), (461, 47658), (507, 43334), (611, 35958), (922, 23829), (1014, 21667), (1222, 17979), (1383, 15886), (1833, 11986), (2766, 7943), (3666, 5993)]