18920172

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 46441472

約数和(自身を除く): 27521300

約数列:

[1, 2, 3, 4, 6, 12, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 444, 516, 991, 1591, 1982, 2973, 3182, 3964, 4773, 5946, 6364, 9546, 11892, 19092, 36667, 42613, 73334, 85226, 110001, 127839, 146668, 170452, 220002, 255678, 440004, 511356, 1576681, 3153362, 4730043, 6306724, 9460086, 18920172]

約数ペア:

[(1, 18920172), (2, 9460086), (3, 6306724), (4, 4730043), (6, 3153362), (12, 1576681), (37, 511356), (43, 440004), (74, 255678), (86, 220002), (111, 170452), (129, 146668), (148, 127839), (172, 110001), (222, 85226), (258, 73334), (444, 42613), (516, 36667), (991, 19092), (1591, 11892), (1982, 9546), (2973, 6364), (3182, 5946), (3964, 4773)]