19209912

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 51168000

約数和(自身を除く): 31958088

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 103, 114, 152, 206, 228, 309, 409, 412, 456, 618, 818, 824, 1227, 1236, 1636, 1957, 2454, 2472, 3272, 3914, 4908, 5871, 7771, 7828, 9816, 11742, 15542, 15656, 23313, 23484, 31084, 42127, 46626, 46968, 62168, 84254, 93252, 126381, 168508, 186504, 252762, 337016, 505524, 800413, 1011048, 1600826, 2401239, 3201652, 4802478, 6403304, 9604956, 19209912]

約数ペア:

[(1, 19209912), (2, 9604956), (3, 6403304), (4, 4802478), (6, 3201652), (8, 2401239), (12, 1600826), (19, 1011048), (24, 800413), (38, 505524), (57, 337016), (76, 252762), (103, 186504), (114, 168508), (152, 126381), (206, 93252), (228, 84254), (309, 62168), (409, 46968), (412, 46626), (456, 42127), (618, 31084), (818, 23484), (824, 23313), (1227, 15656), (1236, 15542), (1636, 11742), (1957, 9816), (2454, 7828), (2472, 7771), (3272, 5871), (3914, 4908)]