19493848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 23274152

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 89, 131, 152, 178, 209, 262, 356, 418, 524, 712, 836, 979, 1048, 1441, 1672, 1691, 1958, 2489, 2882, 3382, 3916, 4978, 5764, 6764, 7832, 9956, 11528, 11659, 13528, 18601, 19912, 23318, 27379, 37202, 46636, 54758, 74404, 93272, 109516, 128249, 148808, 219032, 221521, 256498, 443042, 512996, 886084, 1025992, 1772168, 2436731, 4873462, 9746924, 19493848]

約数ペア:

[(1, 19493848), (2, 9746924), (4, 4873462), (8, 2436731), (11, 1772168), (19, 1025992), (22, 886084), (38, 512996), (44, 443042), (76, 256498), (88, 221521), (89, 219032), (131, 148808), (152, 128249), (178, 109516), (209, 93272), (262, 74404), (356, 54758), (418, 46636), (524, 37202), (712, 27379), (836, 23318), (979, 19912), (1048, 18601), (1441, 13528), (1672, 11659), (1691, 11528), (1958, 9956), (2489, 7832), (2882, 6764), (3382, 5764), (3916, 4978)]