16521428

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 37537920

約数和(自身を除く): 21016492

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 79, 97, 98, 154, 158, 194, 196, 308, 316, 388, 539, 553, 679, 869, 1067, 1078, 1106, 1358, 1738, 2134, 2156, 2212, 2716, 3476, 3871, 4268, 4753, 6083, 7469, 7663, 7742, 9506, 12166, 14938, 15326, 15484, 19012, 24332, 29876, 30652, 42581, 52283, 53641, 84293, 85162, 104566, 107282, 168586, 170324, 209132, 214564, 337172, 375487, 590051, 750974, 1180102, 1501948, 2360204, 4130357, 8260714, 16521428]

約数ペア:

[(1, 16521428), (2, 8260714), (4, 4130357), (7, 2360204), (11, 1501948), (14, 1180102), (22, 750974), (28, 590051), (44, 375487), (49, 337172), (77, 214564), (79, 209132), (97, 170324), (98, 168586), (154, 107282), (158, 104566), (194, 85162), (196, 84293), (308, 53641), (316, 52283), (388, 42581), (539, 30652), (553, 29876), (679, 24332), (869, 19012), (1067, 15484), (1078, 15326), (1106, 14938), (1358, 12166), (1738, 9506), (2134, 7742), (2156, 7663), (2212, 7469), (2716, 6083), (3476, 4753), (3871, 4268)]