21284538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 48881664

約数和(自身を除く): 27597126

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 93, 101, 103, 186, 202, 206, 303, 309, 341, 606, 618, 682, 1023, 1111, 1133, 2046, 2222, 2266, 3131, 3193, 3333, 3399, 6262, 6386, 6666, 6798, 9393, 9579, 10403, 18786, 19158, 20806, 31209, 34441, 35123, 62418, 68882, 70246, 103323, 105369, 114433, 206646, 210738, 228866, 322493, 343299, 644986, 686598, 967479, 1934958, 3547423, 7094846, 10642269, 21284538]

約数ペア:

[(1, 21284538), (2, 10642269), (3, 7094846), (6, 3547423), (11, 1934958), (22, 967479), (31, 686598), (33, 644986), (62, 343299), (66, 322493), (93, 228866), (101, 210738), (103, 206646), (186, 114433), (202, 105369), (206, 103323), (303, 70246), (309, 68882), (341, 62418), (606, 35123), (618, 34441), (682, 31209), (1023, 20806), (1111, 19158), (1133, 18786), (2046, 10403), (2222, 9579), (2266, 9393), (3131, 6798), (3193, 6666), (3333, 6386), (3399, 6262)]