18428696

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 41277600

約数和(自身を除く): 22848904

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 89, 104, 143, 178, 181, 286, 356, 362, 572, 712, 724, 979, 1144, 1157, 1448, 1958, 1991, 2314, 2353, 3916, 3982, 4628, 4706, 7832, 7964, 9256, 9412, 12727, 15928, 16109, 18824, 25454, 25883, 32218, 50908, 51766, 64436, 101816, 103532, 128872, 177199, 207064, 209417, 354398, 418834, 708796, 837668, 1417592, 1675336, 2303587, 4607174, 9214348, 18428696]

約数ペア:

[(1, 18428696), (2, 9214348), (4, 4607174), (8, 2303587), (11, 1675336), (13, 1417592), (22, 837668), (26, 708796), (44, 418834), (52, 354398), (88, 209417), (89, 207064), (104, 177199), (143, 128872), (178, 103532), (181, 101816), (286, 64436), (356, 51766), (362, 50908), (572, 32218), (712, 25883), (724, 25454), (979, 18824), (1144, 16109), (1157, 15928), (1448, 12727), (1958, 9412), (1991, 9256), (2314, 7964), (2353, 7832), (3916, 4706), (3982, 4628)]