21273616

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:816

約数の個数: 80

約数和(自身を含む): 53468800

約数和(自身を除く): 32195184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 728, 769, 988, 1064, 1456, 1538, 1729, 1976, 2128, 3076, 3458, 3952, 5383, 6152, 6916, 9997, 10766, 12304, 13832, 14611, 19994, 21532, 27664, 29222, 39988, 43064, 58444, 69979, 79976, 86128, 102277, 116888, 139958, 159952, 189943, 204554, 233776, 279916, 379886, 409108, 559832, 759772, 818216, 1119664, 1329601, 1519544, 1636432, 2659202, 3039088, 5318404, 10636808, 21273616]

約数ペア:

[(1, 21273616), (2, 10636808), (4, 5318404), (7, 3039088), (8, 2659202), (13, 1636432), (14, 1519544), (16, 1329601), (19, 1119664), (26, 818216), (28, 759772), (38, 559832), (52, 409108), (56, 379886), (76, 279916), (91, 233776), (104, 204554), (112, 189943), (133, 159952), (152, 139958), (182, 116888), (208, 102277), (247, 86128), (266, 79976), (304, 69979), (364, 58444), (494, 43064), (532, 39988), (728, 29222), (769, 27664), (988, 21532), (1064, 19994), (1456, 14611), (1538, 13832), (1729, 12304), (1976, 10766), (2128, 9997), (3076, 6916), (3458, 6152), (3952, 5383)]