28733187

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 50135040

約数和(自身を除く): 21401853

約数列:

[1, 3, 7, 19, 21, 23, 31, 57, 69, 93, 101, 133, 161, 217, 303, 399, 437, 483, 589, 651, 707, 713, 1311, 1767, 1919, 2121, 2139, 2323, 3059, 3131, 4123, 4991, 5757, 6969, 9177, 9393, 12369, 13433, 13547, 14973, 16261, 21917, 40299, 40641, 44137, 48783, 59489, 65751, 72013, 94829, 132411, 178467, 216039, 284487, 308959, 416423, 504091, 926877, 1249269, 1368247, 1512273, 4104741, 9577729, 28733187]

約数ペア:

[(1, 28733187), (3, 9577729), (7, 4104741), (19, 1512273), (21, 1368247), (23, 1249269), (31, 926877), (57, 504091), (69, 416423), (93, 308959), (101, 284487), (133, 216039), (161, 178467), (217, 132411), (303, 94829), (399, 72013), (437, 65751), (483, 59489), (589, 48783), (651, 44137), (707, 40641), (713, 40299), (1311, 21917), (1767, 16261), (1919, 14973), (2121, 13547), (2139, 13433), (2323, 12369), (3059, 9393), (3131, 9177), (4123, 6969), (4991, 5757)]