21970008

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^1\times {\mathrm{2749}}^1$

素因数の和:2801

約数の個数: 64

約数和(自身を含む): 62700000

約数和(自身を除く): 40729992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 108, 111, 148, 216, 222, 296, 333, 444, 666, 888, 999, 1332, 1998, 2664, 2749, 3996, 5498, 7992, 8247, 10996, 16494, 21992, 24741, 32988, 49482, 65976, 74223, 98964, 101713, 148446, 197928, 203426, 296892, 305139, 406852, 593784, 610278, 813704, 915417, 1220556, 1830834, 2441112, 2746251, 3661668, 5492502, 7323336, 10985004, 21970008]

約数ペア:

[(1, 21970008), (2, 10985004), (3, 7323336), (4, 5492502), (6, 3661668), (8, 2746251), (9, 2441112), (12, 1830834), (18, 1220556), (24, 915417), (27, 813704), (36, 610278), (37, 593784), (54, 406852), (72, 305139), (74, 296892), (108, 203426), (111, 197928), (148, 148446), (216, 101713), (222, 98964), (296, 74223), (333, 65976), (444, 49482), (666, 32988), (888, 24741), (999, 21992), (1332, 16494), (1998, 10996), (2664, 8247), (2749, 7992), (3996, 5498)]