20969344

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 46597680

約数和(自身を除く): 25628336

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 128, 176, 212, 281, 352, 424, 562, 583, 704, 848, 1124, 1166, 1408, 1696, 2248, 2332, 3091, 3392, 4496, 4664, 6182, 6784, 8992, 9328, 12364, 14893, 17984, 18656, 24728, 29786, 35968, 37312, 49456, 59572, 74624, 98912, 119144, 163823, 197824, 238288, 327646, 395648, 476576, 655292, 953152, 1310584, 1906304, 2621168, 5242336, 10484672, 20969344]

約数ペア:

[(1, 20969344), (2, 10484672), (4, 5242336), (8, 2621168), (11, 1906304), (16, 1310584), (22, 953152), (32, 655292), (44, 476576), (53, 395648), (64, 327646), (88, 238288), (106, 197824), (128, 163823), (176, 119144), (212, 98912), (281, 74624), (352, 59572), (424, 49456), (562, 37312), (583, 35968), (704, 29786), (848, 24728), (1124, 18656), (1166, 17984), (1408, 14893), (1696, 12364), (2248, 9328), (2332, 8992), (3091, 6784), (3392, 6182), (4496, 4664)]