18944055

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 36998208

約数和(自身を除く): 18054153

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 53, 65, 117, 141, 159, 169, 195, 235, 265, 423, 477, 507, 585, 611, 689, 705, 795, 845, 1521, 1833, 2067, 2115, 2385, 2491, 2535, 3055, 3445, 5499, 6201, 7473, 7605, 7943, 8957, 9165, 10335, 12455, 22419, 23829, 26871, 27495, 31005, 32383, 37365, 39715, 44785, 71487, 80613, 97149, 112095, 119145, 134355, 161915, 291447, 357435, 403065, 420979, 485745, 1262937, 1457235, 2104895, 3788811, 6314685, 18944055]

約数ペア:

[(1, 18944055), (3, 6314685), (5, 3788811), (9, 2104895), (13, 1457235), (15, 1262937), (39, 485745), (45, 420979), (47, 403065), (53, 357435), (65, 291447), (117, 161915), (141, 134355), (159, 119145), (169, 112095), (195, 97149), (235, 80613), (265, 71487), (423, 44785), (477, 39715), (507, 37365), (585, 32383), (611, 31005), (689, 27495), (705, 26871), (795, 23829), (845, 22419), (1521, 12455), (1833, 10335), (2067, 9165), (2115, 8957), (2385, 7943), (2491, 7605), (2535, 7473), (3055, 6201), (3445, 5499)]