19272968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 25724152

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 991, 1144, 1496, 1768, 1982, 2431, 3964, 4862, 7928, 9724, 10901, 12883, 16847, 19448, 21802, 25766, 33694, 43604, 51532, 67388, 87208, 103064, 134776, 141713, 185317, 219011, 283426, 370634, 438022, 566852, 741268, 876044, 1133704, 1482536, 1752088, 2409121, 4818242, 9636484, 19272968]

約数ペア:

[(1, 19272968), (2, 9636484), (4, 4818242), (8, 2409121), (11, 1752088), (13, 1482536), (17, 1133704), (22, 876044), (26, 741268), (34, 566852), (44, 438022), (52, 370634), (68, 283426), (88, 219011), (104, 185317), (136, 141713), (143, 134776), (187, 103064), (221, 87208), (286, 67388), (374, 51532), (442, 43604), (572, 33694), (748, 25766), (884, 21802), (991, 19448), (1144, 16847), (1496, 12883), (1768, 10901), (1982, 9724), (2431, 7928), (3964, 4862)]