17784988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 36126720

約数和(自身を除く): 18341732

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 383, 494, 611, 766, 893, 988, 1222, 1532, 1786, 2444, 3572, 4979, 7277, 9958, 11609, 14554, 18001, 19916, 23218, 29108, 36002, 46436, 72004, 94601, 189202, 234013, 342019, 378404, 468026, 684038, 936052, 1368076, 4446247, 8892494, 17784988]

約数ペア:

[(1, 17784988), (2, 8892494), (4, 4446247), (13, 1368076), (19, 936052), (26, 684038), (38, 468026), (47, 378404), (52, 342019), (76, 234013), (94, 189202), (188, 94601), (247, 72004), (383, 46436), (494, 36002), (611, 29108), (766, 23218), (893, 19916), (988, 18001), (1222, 14554), (1532, 11609), (1786, 9958), (2444, 7277), (3572, 4979)]