21081775689

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{18787}}^1$

素因数の和:18971

約数の個数: 64

約数和(自身を含む): 35351500800

約数和(自身を除く): 14269725111

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 139, 207, 299, 351, 417, 621, 897, 1251, 1807, 2691, 3197, 3753, 5421, 8073, 9591, 16263, 18787, 28773, 41561, 48789, 56361, 86319, 124683, 169083, 244231, 374049, 432101, 507249, 732693, 1122147, 1296303, 2198079, 2611393, 3888909, 5617313, 6594237, 7834179, 11666727, 16851939, 23502537, 33948109, 50555817, 60062039, 70507611, 101844327, 151667451, 180186117, 305532981, 540558351, 780806507, 916598943, 1621675053, 2342419521, 7027258563, 21081775689]

約数ペア:

[(1, 21081775689), (3, 7027258563), (9, 2342419521), (13, 1621675053), (23, 916598943), (27, 780806507), (39, 540558351), (69, 305532981), (117, 180186117), (139, 151667451), (207, 101844327), (299, 70507611), (351, 60062039), (417, 50555817), (621, 33948109), (897, 23502537), (1251, 16851939), (1807, 11666727), (2691, 7834179), (3197, 6594237), (3753, 5617313), (5421, 3888909), (8073, 2611393), (9591, 2198079), (16263, 1296303), (18787, 1122147), (28773, 732693), (41561, 507249), (48789, 432101), (56361, 374049), (86319, 244231), (124683, 169083)]