221243645

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{599}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 310694400

約数和(自身を除く): 89450755

約数列:

[1, 5, 7, 35, 61, 173, 305, 427, 599, 865, 1211, 2135, 2995, 4193, 6055, 10553, 20965, 36539, 52765, 73871, 103627, 182695, 255773, 369355, 518135, 725389, 1278865, 3626945, 6321247, 31606235, 44248729, 221243645]

約数ペア:

[(1, 221243645), (5, 44248729), (7, 31606235), (35, 6321247), (61, 3626945), (173, 1278865), (305, 725389), (427, 518135), (599, 369355), (865, 255773), (1211, 182695), (2135, 103627), (2995, 73871), (4193, 52765), (6055, 36539), (10553, 20965)]