21912828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{739}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 58679040

約数和(自身を除く): 36766212

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 353, 706, 739, 1059, 1412, 1478, 2118, 2217, 2471, 2956, 4236, 4434, 4942, 5173, 7413, 8868, 9884, 10346, 14826, 15519, 20692, 29652, 31038, 62076, 260867, 521734, 782601, 1043468, 1565202, 1826069, 3130404, 3652138, 5478207, 7304276, 10956414, 21912828]

約数ペア:

[(1, 21912828), (2, 10956414), (3, 7304276), (4, 5478207), (6, 3652138), (7, 3130404), (12, 1826069), (14, 1565202), (21, 1043468), (28, 782601), (42, 521734), (84, 260867), (353, 62076), (706, 31038), (739, 29652), (1059, 20692), (1412, 15519), (1478, 14826), (2118, 10346), (2217, 9884), (2471, 8868), (2956, 7413), (4236, 5173), (4434, 4942)]