21982088

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 25192312

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 47, 68, 76, 94, 136, 152, 181, 188, 323, 362, 376, 646, 724, 799, 893, 1292, 1448, 1598, 1786, 2584, 3077, 3196, 3439, 3572, 6154, 6392, 6878, 7144, 8507, 12308, 13756, 15181, 17014, 24616, 27512, 30362, 34028, 58463, 60724, 68056, 116926, 121448, 144619, 161633, 233852, 289238, 323266, 467704, 578476, 646532, 1156952, 1293064, 2747761, 5495522, 10991044, 21982088]

約数ペア:

[(1, 21982088), (2, 10991044), (4, 5495522), (8, 2747761), (17, 1293064), (19, 1156952), (34, 646532), (38, 578476), (47, 467704), (68, 323266), (76, 289238), (94, 233852), (136, 161633), (152, 144619), (181, 121448), (188, 116926), (323, 68056), (362, 60724), (376, 58463), (646, 34028), (724, 30362), (799, 27512), (893, 24616), (1292, 17014), (1448, 15181), (1598, 13756), (1786, 12308), (2584, 8507), (3077, 7144), (3196, 6878), (3439, 6392), (3572, 6154)]