19904324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 41428800

約数和(自身を除く): 21524476

約数列:

[1, 2, 4, 11, 19, 22, 29, 38, 44, 58, 76, 116, 209, 319, 418, 551, 638, 821, 836, 1102, 1276, 1642, 2204, 3284, 6061, 9031, 12122, 15599, 18062, 23809, 24244, 31198, 36124, 47618, 62396, 95236, 171589, 261899, 343178, 452371, 523798, 686356, 904742, 1047596, 1809484, 4976081, 9952162, 19904324]

約数ペア:

[(1, 19904324), (2, 9952162), (4, 4976081), (11, 1809484), (19, 1047596), (22, 904742), (29, 686356), (38, 523798), (44, 452371), (58, 343178), (76, 261899), (116, 171589), (209, 95236), (319, 62396), (418, 47618), (551, 36124), (638, 31198), (821, 24244), (836, 23809), (1102, 18062), (1276, 15599), (1642, 12122), (2204, 9031), (3284, 6061)]