21463764

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 58873248

約数和(自身を除く): 37409484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 173, 196, 211, 294, 346, 422, 519, 588, 633, 692, 844, 1038, 1211, 1266, 1477, 2076, 2422, 2532, 2954, 3633, 4431, 4844, 5908, 7266, 8477, 8862, 10339, 14532, 16954, 17724, 20678, 25431, 31017, 33908, 36503, 41356, 50862, 62034, 73006, 101724, 109509, 124068, 146012, 219018, 255521, 438036, 511042, 766563, 1022084, 1533126, 1788647, 3066252, 3577294, 5365941, 7154588, 10731882, 21463764]

約数ペア:

[(1, 21463764), (2, 10731882), (3, 7154588), (4, 5365941), (6, 3577294), (7, 3066252), (12, 1788647), (14, 1533126), (21, 1022084), (28, 766563), (42, 511042), (49, 438036), (84, 255521), (98, 219018), (147, 146012), (173, 124068), (196, 109509), (211, 101724), (294, 73006), (346, 62034), (422, 50862), (519, 41356), (588, 36503), (633, 33908), (692, 31017), (844, 25431), (1038, 20678), (1211, 17724), (1266, 16954), (1477, 14532), (2076, 10339), (2422, 8862), (2532, 8477), (2954, 7266), (3633, 5908), (4431, 4844)]