20721552

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{22721}}^1$

素因数の和:22751

約数の個数: 40

約数和(自身を含む): 56350560

約数和(自身を除く): 35629008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 22721, 45442, 68163, 90884, 136326, 181768, 272652, 363536, 431699, 545304, 863398, 1090608, 1295097, 1726796, 2590194, 3453592, 5180388, 6907184, 10360776, 20721552]

約数ペア:

[(1, 20721552), (2, 10360776), (3, 6907184), (4, 5180388), (6, 3453592), (8, 2590194), (12, 1726796), (16, 1295097), (19, 1090608), (24, 863398), (38, 545304), (48, 431699), (57, 363536), (76, 272652), (114, 181768), (152, 136326), (228, 90884), (304, 68163), (456, 45442), (912, 22721)]