18611888

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 37460400

約数和(自身を除く): 18848512

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 149, 211, 296, 298, 422, 592, 596, 844, 1192, 1688, 2384, 3376, 5513, 7807, 11026, 15614, 22052, 31228, 31439, 44104, 62456, 62878, 88208, 124912, 125756, 251512, 503024, 1163243, 2326486, 4652972, 9305944, 18611888]

約数ペア:

[(1, 18611888), (2, 9305944), (4, 4652972), (8, 2326486), (16, 1163243), (37, 503024), (74, 251512), (148, 125756), (149, 124912), (211, 88208), (296, 62878), (298, 62456), (422, 44104), (592, 31439), (596, 31228), (844, 22052), (1192, 15614), (1688, 11026), (2384, 7807), (3376, 5513)]