21560016

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 59281920

約数和(自身を除く): 37721904

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 59, 69, 92, 118, 138, 177, 184, 236, 276, 331, 354, 368, 472, 552, 662, 708, 944, 993, 1104, 1324, 1357, 1416, 1986, 2648, 2714, 2832, 3972, 4071, 5296, 5428, 7613, 7944, 8142, 10856, 15226, 15888, 16284, 19529, 21712, 22839, 30452, 32568, 39058, 45678, 58587, 60904, 65136, 78116, 91356, 117174, 121808, 156232, 182712, 234348, 312464, 365424, 449167, 468696, 898334, 937392, 1347501, 1796668, 2695002, 3593336, 5390004, 7186672, 10780008, 21560016]

約数ペア:

[(1, 21560016), (2, 10780008), (3, 7186672), (4, 5390004), (6, 3593336), (8, 2695002), (12, 1796668), (16, 1347501), (23, 937392), (24, 898334), (46, 468696), (48, 449167), (59, 365424), (69, 312464), (92, 234348), (118, 182712), (138, 156232), (177, 121808), (184, 117174), (236, 91356), (276, 78116), (331, 65136), (354, 60904), (368, 58587), (472, 45678), (552, 39058), (662, 32568), (708, 30452), (944, 22839), (993, 21712), (1104, 19529), (1324, 16284), (1357, 15888), (1416, 15226), (1986, 10856), (2648, 8142), (2714, 7944), (2832, 7613), (3972, 5428), (4071, 5296)]