20986957504

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{1709}}^1\times {\mathrm{11287}}^1$

素因数の和:13025

約数の個数: 56

約数和(自身を含む): 44125469280

約数和(自身を除く): 23138511776

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 1709, 3418, 6836, 11287, 13672, 22574, 27344, 29053, 45148, 54688, 58106, 90296, 109376, 116212, 180592, 191879, 232424, 361184, 383758, 464848, 722368, 767516, 929696, 1535032, 1859392, 3070064, 6140128, 12280256, 19289483, 38578966, 77157932, 154315864, 308631728, 327921211, 617263456, 655842422, 1234526912, 1311684844, 2623369688, 5246739376, 10493478752, 20986957504]

約数ペア:

[(1, 20986957504), (2, 10493478752), (4, 5246739376), (8, 2623369688), (16, 1311684844), (17, 1234526912), (32, 655842422), (34, 617263456), (64, 327921211), (68, 308631728), (136, 154315864), (272, 77157932), (544, 38578966), (1088, 19289483), (1709, 12280256), (3418, 6140128), (6836, 3070064), (11287, 1859392), (13672, 1535032), (22574, 929696), (27344, 767516), (29053, 722368), (45148, 464848), (54688, 383758), (58106, 361184), (90296, 232424), (109376, 191879), (116212, 180592)]