31851638

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 63329280

約数和(自身を除く): 31477642

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 61, 91, 122, 133, 151, 182, 247, 266, 302, 427, 494, 793, 854, 1057, 1159, 1586, 1729, 1963, 2114, 2318, 2869, 3458, 3926, 5551, 5738, 8113, 9211, 11102, 13741, 15067, 16226, 18422, 20083, 27482, 30134, 37297, 40166, 64477, 74594, 105469, 119743, 128954, 175009, 210938, 239486, 261079, 350018, 522158, 838201, 1225063, 1676402, 2275117, 2450126, 4550234, 15925819, 31851638]

約数ペア:

[(1, 31851638), (2, 15925819), (7, 4550234), (13, 2450126), (14, 2275117), (19, 1676402), (26, 1225063), (38, 838201), (61, 522158), (91, 350018), (122, 261079), (133, 239486), (151, 210938), (182, 175009), (247, 128954), (266, 119743), (302, 105469), (427, 74594), (494, 64477), (793, 40166), (854, 37297), (1057, 30134), (1159, 27482), (1586, 20083), (1729, 18422), (1963, 16226), (2114, 15067), (2318, 13741), (2869, 11102), (3458, 9211), (3926, 8113), (5551, 5738)]