21272202

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9931}}^1$

素因数の和:9963

約数の個数: 48

約数和(自身を含む): 55778112

約数和(自身を除く): 34505910

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142, 9931, 19862, 29793, 59586, 69517, 89379, 139034, 168827, 178758, 208551, 337654, 417102, 506481, 625653, 1012962, 1181789, 1251306, 1519443, 2363578, 3038886, 3545367, 7090734, 10636101, 21272202]

約数ペア:

[(1, 21272202), (2, 10636101), (3, 7090734), (6, 3545367), (7, 3038886), (9, 2363578), (14, 1519443), (17, 1251306), (18, 1181789), (21, 1012962), (34, 625653), (42, 506481), (51, 417102), (63, 337654), (102, 208551), (119, 178758), (126, 168827), (153, 139034), (238, 89379), (306, 69517), (357, 59586), (714, 29793), (1071, 19862), (2142, 9931)]