21972654

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 32148306

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 71, 99, 142, 198, 213, 297, 426, 521, 594, 639, 781, 1042, 1278, 1562, 1563, 1917, 2343, 3126, 3834, 4686, 4689, 5731, 7029, 9378, 11462, 14058, 14067, 17193, 21087, 28134, 34386, 36991, 42174, 51579, 73982, 103158, 110973, 154737, 221946, 309474, 332919, 406901, 665838, 813802, 998757, 1220703, 1997514, 2441406, 3662109, 7324218, 10986327, 21972654]

約数ペア:

[(1, 21972654), (2, 10986327), (3, 7324218), (6, 3662109), (9, 2441406), (11, 1997514), (18, 1220703), (22, 998757), (27, 813802), (33, 665838), (54, 406901), (66, 332919), (71, 309474), (99, 221946), (142, 154737), (198, 110973), (213, 103158), (297, 73982), (426, 51579), (521, 42174), (594, 36991), (639, 34386), (781, 28134), (1042, 21087), (1278, 17193), (1562, 14067), (1563, 14058), (1917, 11462), (2343, 9378), (3126, 7029), (3834, 5731), (4686, 4689)]