19356975

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 90

約数和(自身を含む): 39910640

約数和(自身を除く): 20553665

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 79, 81, 99, 121, 135, 165, 225, 237, 275, 297, 363, 395, 405, 495, 605, 675, 711, 825, 869, 891, 1089, 1185, 1485, 1815, 1975, 2025, 2133, 2475, 2607, 3025, 3267, 3555, 4345, 4455, 5445, 5925, 6399, 7425, 7821, 9075, 9559, 9801, 10665, 13035, 16335, 17775, 21725, 22275, 23463, 27225, 28677, 31995, 39105, 47795, 49005, 53325, 65175, 70389, 81675, 86031, 117315, 143385, 159975, 195525, 238975, 245025, 258093, 351945, 430155, 586575, 716925, 774279, 1290465, 1759725, 2150775, 3871395, 6452325, 19356975]

約数ペア:

[(1, 19356975), (3, 6452325), (5, 3871395), (9, 2150775), (11, 1759725), (15, 1290465), (25, 774279), (27, 716925), (33, 586575), (45, 430155), (55, 351945), (75, 258093), (79, 245025), (81, 238975), (99, 195525), (121, 159975), (135, 143385), (165, 117315), (225, 86031), (237, 81675), (275, 70389), (297, 65175), (363, 53325), (395, 49005), (405, 47795), (495, 39105), (605, 31995), (675, 28677), (711, 27225), (825, 23463), (869, 22275), (891, 21725), (1089, 17775), (1185, 16335), (1485, 13035), (1815, 10665), (1975, 9801), (2025, 9559), (2133, 9075), (2475, 7821), (2607, 7425), (3025, 6399), (3267, 5925), (3555, 5445), (4345, 4455)]