18693376

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 41464584

約数和(自身を除く): 22771208

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 128, 137, 164, 208, 256, 274, 328, 416, 533, 548, 656, 832, 1066, 1096, 1312, 1664, 1781, 2132, 2192, 2624, 3328, 3562, 4264, 4384, 5248, 5617, 7124, 8528, 8768, 10496, 11234, 14248, 17056, 17536, 22468, 28496, 34112, 35072, 44936, 56992, 68224, 73021, 89872, 113984, 136448, 146042, 179744, 227968, 292084, 359488, 455936, 584168, 718976, 1168336, 1437952, 2336672, 4673344, 9346688, 18693376]

約数ペア:

[(1, 18693376), (2, 9346688), (4, 4673344), (8, 2336672), (13, 1437952), (16, 1168336), (26, 718976), (32, 584168), (41, 455936), (52, 359488), (64, 292084), (82, 227968), (104, 179744), (128, 146042), (137, 136448), (164, 113984), (208, 89872), (256, 73021), (274, 68224), (328, 56992), (416, 44936), (533, 35072), (548, 34112), (656, 28496), (832, 22468), (1066, 17536), (1096, 17056), (1312, 14248), (1664, 11234), (1781, 10496), (2132, 8768), (2192, 8528), (2624, 7124), (3328, 5617), (3562, 5248), (4264, 4384)]