21620742

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 29859834

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 113, 143, 223, 226, 286, 339, 429, 446, 669, 678, 858, 1243, 1338, 1469, 2453, 2486, 2899, 2938, 3729, 4407, 4906, 5798, 7359, 7458, 8697, 8814, 14718, 16159, 17394, 25199, 31889, 32318, 48477, 50398, 63778, 75597, 95667, 96954, 151194, 191334, 277189, 327587, 554378, 655174, 831567, 982761, 1663134, 1965522, 3603457, 7206914, 10810371, 21620742]

約数ペア:

[(1, 21620742), (2, 10810371), (3, 7206914), (6, 3603457), (11, 1965522), (13, 1663134), (22, 982761), (26, 831567), (33, 655174), (39, 554378), (66, 327587), (78, 277189), (113, 191334), (143, 151194), (223, 96954), (226, 95667), (286, 75597), (339, 63778), (429, 50398), (446, 48477), (669, 32318), (678, 31889), (858, 25199), (1243, 17394), (1338, 16159), (1469, 14718), (2453, 8814), (2486, 8697), (2899, 7458), (2938, 7359), (3729, 5798), (4407, 4906)]