18375945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 36188160

約数和(自身を除く): 17812215

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 61, 95, 105, 133, 151, 183, 285, 305, 399, 427, 453, 665, 755, 915, 1057, 1159, 1281, 1995, 2135, 2265, 2869, 3171, 3477, 5285, 5795, 6405, 8113, 8607, 9211, 14345, 15855, 17385, 20083, 24339, 27633, 40565, 43035, 46055, 60249, 64477, 100415, 121695, 138165, 175009, 193431, 301245, 322385, 525027, 875045, 967155, 1225063, 2625135, 3675189, 6125315, 18375945]

約数ペア:

[(1, 18375945), (3, 6125315), (5, 3675189), (7, 2625135), (15, 1225063), (19, 967155), (21, 875045), (35, 525027), (57, 322385), (61, 301245), (95, 193431), (105, 175009), (133, 138165), (151, 121695), (183, 100415), (285, 64477), (305, 60249), (399, 46055), (427, 43035), (453, 40565), (665, 27633), (755, 24339), (915, 20083), (1057, 17385), (1159, 15855), (1281, 14345), (1995, 9211), (2135, 8607), (2265, 8113), (2869, 6405), (3171, 5795), (3477, 5285)]