21060208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^2$

素因数の和:186

約数の個数: 60

約数和(自身を含む): 46898040

約数和(自身を除く): 25837832

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 73, 76, 104, 146, 152, 208, 247, 292, 304, 494, 584, 949, 988, 1168, 1387, 1898, 1976, 2774, 3796, 3952, 5329, 5548, 7592, 10658, 11096, 15184, 18031, 21316, 22192, 36062, 42632, 69277, 72124, 85264, 101251, 138554, 144248, 202502, 277108, 288496, 405004, 554216, 810008, 1108432, 1316263, 1620016, 2632526, 5265052, 10530104, 21060208]

約数ペア:

[(1, 21060208), (2, 10530104), (4, 5265052), (8, 2632526), (13, 1620016), (16, 1316263), (19, 1108432), (26, 810008), (38, 554216), (52, 405004), (73, 288496), (76, 277108), (104, 202502), (146, 144248), (152, 138554), (208, 101251), (247, 85264), (292, 72124), (304, 69277), (494, 42632), (584, 36062), (949, 22192), (988, 21316), (1168, 18031), (1387, 15184), (1898, 11096), (1976, 10658), (2774, 7592), (3796, 5548), (3952, 5329)]