20383408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{547}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 42198192

約数和(自身を除く): 21814784

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 137, 272, 274, 547, 548, 1094, 1096, 2188, 2192, 2329, 4376, 4658, 8752, 9299, 9316, 18598, 18632, 37196, 37264, 74392, 74939, 148784, 149878, 299756, 599512, 1199024, 1273963, 2547926, 5095852, 10191704, 20383408]

約数ペア:

[(1, 20383408), (2, 10191704), (4, 5095852), (8, 2547926), (16, 1273963), (17, 1199024), (34, 599512), (68, 299756), (136, 149878), (137, 148784), (272, 74939), (274, 74392), (547, 37264), (548, 37196), (1094, 18632), (1096, 18598), (2188, 9316), (2192, 9299), (2329, 8752), (4376, 4658)]