21820848

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:762

約数の個数: 80

約数和(自身を含む): 65162496

約数和(自身を除く): 43341648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 101, 112, 168, 202, 303, 336, 404, 606, 643, 707, 808, 1212, 1286, 1414, 1616, 1929, 2121, 2424, 2572, 2828, 3858, 4242, 4501, 4848, 5144, 5656, 7716, 8484, 9002, 10288, 11312, 13503, 15432, 16968, 18004, 27006, 30864, 33936, 36008, 54012, 64943, 72016, 108024, 129886, 194829, 216048, 259772, 389658, 454601, 519544, 779316, 909202, 1039088, 1363803, 1558632, 1818404, 2727606, 3117264, 3636808, 5455212, 7273616, 10910424, 21820848]

約数ペア:

[(1, 21820848), (2, 10910424), (3, 7273616), (4, 5455212), (6, 3636808), (7, 3117264), (8, 2727606), (12, 1818404), (14, 1558632), (16, 1363803), (21, 1039088), (24, 909202), (28, 779316), (42, 519544), (48, 454601), (56, 389658), (84, 259772), (101, 216048), (112, 194829), (168, 129886), (202, 108024), (303, 72016), (336, 64943), (404, 54012), (606, 36008), (643, 33936), (707, 30864), (808, 27006), (1212, 18004), (1286, 16968), (1414, 15432), (1616, 13503), (1929, 11312), (2121, 10288), (2424, 9002), (2572, 8484), (2828, 7716), (3858, 5656), (4242, 5144), (4501, 4848)]