21290556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2243}}^1$

素因数の和:2370

約数の個数: 48

約数和(自身を含む): 57302784

約数和(自身を除く): 36012228

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 113, 226, 339, 452, 678, 791, 1356, 1582, 2243, 2373, 3164, 4486, 4746, 6729, 8972, 9492, 13458, 15701, 26916, 31402, 47103, 62804, 94206, 188412, 253459, 506918, 760377, 1013836, 1520754, 1774213, 3041508, 3548426, 5322639, 7096852, 10645278, 21290556]

約数ペア:

[(1, 21290556), (2, 10645278), (3, 7096852), (4, 5322639), (6, 3548426), (7, 3041508), (12, 1774213), (14, 1520754), (21, 1013836), (28, 760377), (42, 506918), (84, 253459), (113, 188412), (226, 94206), (339, 62804), (452, 47103), (678, 31402), (791, 26916), (1356, 15701), (1582, 13458), (2243, 9492), (2373, 8972), (3164, 6729), (4486, 4746)]