21306050

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 20691262

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 97, 115, 191, 194, 230, 382, 485, 575, 955, 970, 1150, 1910, 2231, 2425, 4393, 4462, 4775, 4850, 8786, 9550, 11155, 18527, 21965, 22310, 37054, 43930, 55775, 92635, 109825, 111550, 185270, 219650, 426121, 463175, 852242, 926350, 2130605, 4261210, 10653025, 21306050]

約数ペア:

[(1, 21306050), (2, 10653025), (5, 4261210), (10, 2130605), (23, 926350), (25, 852242), (46, 463175), (50, 426121), (97, 219650), (115, 185270), (191, 111550), (194, 109825), (230, 92635), (382, 55775), (485, 43930), (575, 37054), (955, 22310), (970, 21965), (1150, 18527), (1910, 11155), (2231, 9550), (2425, 8786), (4393, 4850), (4462, 4775)]