18698368

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 42540120

約数和(自身を除く): 23841752

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 661, 832, 884, 1088, 1322, 1664, 1768, 2176, 2644, 3536, 5288, 7072, 8593, 10576, 11237, 14144, 17186, 21152, 22474, 28288, 34372, 42304, 44948, 68744, 84608, 89896, 137488, 146081, 179792, 274976, 292162, 359584, 549952, 584324, 719168, 1099904, 1168648, 1438336, 2337296, 4674592, 9349184, 18698368]

約数ペア:

[(1, 18698368), (2, 9349184), (4, 4674592), (8, 2337296), (13, 1438336), (16, 1168648), (17, 1099904), (26, 719168), (32, 584324), (34, 549952), (52, 359584), (64, 292162), (68, 274976), (104, 179792), (128, 146081), (136, 137488), (208, 89896), (221, 84608), (272, 68744), (416, 44948), (442, 42304), (544, 34372), (661, 28288), (832, 22474), (884, 21152), (1088, 17186), (1322, 14144), (1664, 11237), (1768, 10576), (2176, 8593), (2644, 7072), (3536, 5288)]