21000339399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{5881}}^1$

素因数の和:6056

約数の個数: 64

約数和(自身を含む): 32675686400

約数和(自身を除く): 11675347001

約数列:

[1, 3, 13, 19, 39, 57, 61, 79, 183, 237, 247, 741, 793, 1027, 1159, 1501, 2379, 3081, 3477, 4503, 4819, 5881, 14457, 15067, 17643, 19513, 45201, 58539, 62647, 76453, 91561, 111739, 187941, 229359, 274683, 335217, 358741, 464599, 1076223, 1190293, 1393797, 1452607, 3570879, 4357821, 4663633, 6039787, 6816079, 8827381, 13990899, 18119361, 20448237, 26482143, 28340539, 85021617, 88609027, 114755953, 265827081, 344267859, 368427007, 538470241, 1105281021, 1615410723, 7000113133, 21000339399]

約数ペア:

[(1, 21000339399), (3, 7000113133), (13, 1615410723), (19, 1105281021), (39, 538470241), (57, 368427007), (61, 344267859), (79, 265827081), (183, 114755953), (237, 88609027), (247, 85021617), (741, 28340539), (793, 26482143), (1027, 20448237), (1159, 18119361), (1501, 13990899), (2379, 8827381), (3081, 6816079), (3477, 6039787), (4503, 4663633), (4819, 4357821), (5881, 3570879), (14457, 1452607), (15067, 1393797), (17643, 1190293), (19513, 1076223), (45201, 464599), (58539, 358741), (62647, 335217), (76453, 274683), (91561, 229359), (111739, 187941)]