21825840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:658

約数の個数: 80

約数和(自身を含む): 68138496

約数和(自身を除く): 46312656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 422, 431, 633, 844, 862, 1055, 1266, 1293, 1688, 1724, 2110, 2155, 2532, 2586, 3165, 3376, 3448, 4220, 4310, 5064, 5172, 6330, 6465, 6896, 8440, 8620, 10128, 10344, 12660, 12930, 16880, 17240, 20688, 25320, 25860, 34480, 50640, 51720, 90941, 103440, 181882, 272823, 363764, 454705, 545646, 727528, 909410, 1091292, 1364115, 1455056, 1818820, 2182584, 2728230, 3637640, 4365168, 5456460, 7275280, 10912920, 21825840]

約数ペア:

[(1, 21825840), (2, 10912920), (3, 7275280), (4, 5456460), (5, 4365168), (6, 3637640), (8, 2728230), (10, 2182584), (12, 1818820), (15, 1455056), (16, 1364115), (20, 1091292), (24, 909410), (30, 727528), (40, 545646), (48, 454705), (60, 363764), (80, 272823), (120, 181882), (211, 103440), (240, 90941), (422, 51720), (431, 50640), (633, 34480), (844, 25860), (862, 25320), (1055, 20688), (1266, 17240), (1293, 16880), (1688, 12930), (1724, 12660), (2110, 10344), (2155, 10128), (2532, 8620), (2586, 8440), (3165, 6896), (3376, 6465), (3448, 6330), (4220, 5172), (4310, 5064)]