21398328

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42457}}^1$

素因数の和:42476

約数の個数: 48

約数和(自身を含む): 66234480

約数和(自身を除く): 44836152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42457, 84914, 127371, 169828, 254742, 297199, 339656, 382113, 509484, 594398, 764226, 891597, 1018968, 1188796, 1528452, 1783194, 2377592, 2674791, 3056904, 3566388, 5349582, 7132776, 10699164, 21398328]

約数ペア:

[(1, 21398328), (2, 10699164), (3, 7132776), (4, 5349582), (6, 3566388), (7, 3056904), (8, 2674791), (9, 2377592), (12, 1783194), (14, 1528452), (18, 1188796), (21, 1018968), (24, 891597), (28, 764226), (36, 594398), (42, 509484), (56, 382113), (63, 339656), (72, 297199), (84, 254742), (126, 169828), (168, 127371), (252, 84914), (504, 42457)]