21473375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 35223552

約数和(自身を除く): 13750177

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 77, 97, 115, 125, 161, 175, 253, 275, 385, 485, 575, 679, 805, 875, 1067, 1265, 1375, 1771, 1925, 2231, 2425, 2875, 3395, 4025, 5335, 6325, 7469, 8855, 9625, 11155, 12125, 15617, 16975, 20125, 24541, 26675, 31625, 37345, 44275, 55775, 78085, 84875, 122705, 133375, 171787, 186725, 221375, 278875, 390425, 613525, 858935, 933625, 1952125, 3067625, 4294675, 21473375]

約数ペア:

[(1, 21473375), (5, 4294675), (7, 3067625), (11, 1952125), (23, 933625), (25, 858935), (35, 613525), (55, 390425), (77, 278875), (97, 221375), (115, 186725), (125, 171787), (161, 133375), (175, 122705), (253, 84875), (275, 78085), (385, 55775), (485, 44275), (575, 37345), (679, 31625), (805, 26675), (875, 24541), (1067, 20125), (1265, 16975), (1375, 15617), (1771, 12125), (1925, 11155), (2231, 9625), (2425, 8855), (2875, 7469), (3395, 6325), (4025, 5335)]