20652892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 21344420

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 61, 68, 122, 221, 244, 383, 442, 766, 793, 884, 1037, 1532, 1586, 2074, 3172, 4148, 4979, 6511, 9958, 13022, 13481, 19916, 23363, 26044, 26962, 46726, 53924, 84643, 93452, 169286, 303719, 338572, 397171, 607438, 794342, 1214876, 1588684, 5163223, 10326446, 20652892]

約数ペア:

[(1, 20652892), (2, 10326446), (4, 5163223), (13, 1588684), (17, 1214876), (26, 794342), (34, 607438), (52, 397171), (61, 338572), (68, 303719), (122, 169286), (221, 93452), (244, 84643), (383, 53924), (442, 46726), (766, 26962), (793, 26044), (884, 23363), (1037, 19916), (1532, 13481), (1586, 13022), (2074, 9958), (3172, 6511), (4148, 4979)]