19738548

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 52468416

約数和(自身を除く): 32729868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 43, 82, 86, 123, 129, 164, 172, 246, 258, 311, 369, 387, 492, 516, 622, 738, 774, 933, 1244, 1476, 1548, 1763, 1866, 2799, 3526, 3732, 5289, 5598, 7052, 10578, 11196, 12751, 13373, 15867, 21156, 25502, 26746, 31734, 38253, 40119, 51004, 53492, 63468, 76506, 80238, 114759, 120357, 153012, 160476, 229518, 240714, 459036, 481428, 548293, 1096586, 1644879, 2193172, 3289758, 4934637, 6579516, 9869274, 19738548]

約数ペア:

[(1, 19738548), (2, 9869274), (3, 6579516), (4, 4934637), (6, 3289758), (9, 2193172), (12, 1644879), (18, 1096586), (36, 548293), (41, 481428), (43, 459036), (82, 240714), (86, 229518), (123, 160476), (129, 153012), (164, 120357), (172, 114759), (246, 80238), (258, 76506), (311, 63468), (369, 53492), (387, 51004), (492, 40119), (516, 38253), (622, 31734), (738, 26746), (774, 25502), (933, 21156), (1244, 15867), (1476, 13373), (1548, 12751), (1763, 11196), (1866, 10578), (2799, 7052), (3526, 5598), (3732, 5289)]