28977299

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 6665581

約数列:

[1, 13, 17, 19, 67, 103, 221, 247, 323, 871, 1139, 1273, 1339, 1751, 1957, 4199, 6901, 14807, 16549, 21641, 22763, 25441, 33269, 89713, 117317, 131119, 281333, 432497, 1525121, 1704547, 2229023, 28977299]

約数ペア:

[(1, 28977299), (13, 2229023), (17, 1704547), (19, 1525121), (67, 432497), (103, 281333), (221, 131119), (247, 117317), (323, 89713), (871, 33269), (1139, 25441), (1273, 22763), (1339, 21641), (1751, 16549), (1957, 14807), (4199, 6901)]