21787662417

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{571}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 32195015424

約数和(自身を除く): 10407353007

約数列:

[1, 3, 17, 37, 51, 73, 111, 219, 277, 571, 629, 831, 1241, 1713, 1887, 2701, 3723, 4709, 8103, 9707, 10249, 14127, 20221, 21127, 29121, 30747, 41683, 45917, 60663, 63381, 125049, 137751, 158167, 174233, 343757, 359159, 474501, 522699, 708611, 748177, 1031271, 1077477, 1542271, 2125833, 2244531, 2688839, 4626813, 5852179, 8066517, 11546191, 12719009, 17556537, 26218607, 34638573, 38157027, 78655821, 99487043, 196285247, 298461129, 427209067, 588855741, 1281627201, 7262554139, 21787662417]

約数ペア:

[(1, 21787662417), (3, 7262554139), (17, 1281627201), (37, 588855741), (51, 427209067), (73, 298461129), (111, 196285247), (219, 99487043), (277, 78655821), (571, 38157027), (629, 34638573), (831, 26218607), (1241, 17556537), (1713, 12719009), (1887, 11546191), (2701, 8066517), (3723, 5852179), (4709, 4626813), (8103, 2688839), (9707, 2244531), (10249, 2125833), (14127, 1542271), (20221, 1077477), (21127, 1031271), (29121, 748177), (30747, 708611), (41683, 522699), (45917, 474501), (60663, 359159), (63381, 343757), (125049, 174233), (137751, 158167)]