20185920018

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{989797}}^1$

素因数の和:989919

約数の個数: 48

約数和(自身を含む): 48175448256

約数和(自身を除く): 27989528238

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 198, 206, 309, 618, 927, 1133, 1854, 2266, 3399, 6798, 10197, 20394, 989797, 1979594, 2969391, 5938782, 8908173, 10887767, 17816346, 21775534, 32663301, 65326602, 97989903, 101949091, 195979806, 203898182, 305847273, 611694546, 917541819, 1121440001, 1835083638, 2242880002, 3364320003, 6728640006, 10092960009, 20185920018]

約数ペア:

[(1, 20185920018), (2, 10092960009), (3, 6728640006), (6, 3364320003), (9, 2242880002), (11, 1835083638), (18, 1121440001), (22, 917541819), (33, 611694546), (66, 305847273), (99, 203898182), (103, 195979806), (198, 101949091), (206, 97989903), (309, 65326602), (618, 32663301), (927, 21775534), (1133, 17816346), (1854, 10887767), (2266, 8908173), (3399, 5938782), (6798, 2969391), (10197, 1979594), (20394, 989797)]