21127710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 52799040

約数和(自身を除く): 31671330

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 89, 123, 178, 193, 205, 246, 267, 386, 410, 445, 534, 579, 615, 890, 965, 1158, 1230, 1335, 1930, 2670, 2895, 3649, 5790, 7298, 7913, 10947, 15826, 17177, 18245, 21894, 23739, 34354, 36490, 39565, 47478, 51531, 54735, 79130, 85885, 103062, 109470, 118695, 171770, 237390, 257655, 515310, 704257, 1408514, 2112771, 3521285, 4225542, 7042570, 10563855, 21127710]

約数ペア:

[(1, 21127710), (2, 10563855), (3, 7042570), (5, 4225542), (6, 3521285), (10, 2112771), (15, 1408514), (30, 704257), (41, 515310), (82, 257655), (89, 237390), (123, 171770), (178, 118695), (193, 109470), (205, 103062), (246, 85885), (267, 79130), (386, 54735), (410, 51531), (445, 47478), (534, 39565), (579, 36490), (615, 34354), (890, 23739), (965, 21894), (1158, 18245), (1230, 17177), (1335, 15826), (1930, 10947), (2670, 7913), (2895, 7298), (3649, 5790)]