21490896

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 63995904

約数和(自身を除く): 42505008

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 167, 168, 334, 336, 383, 501, 668, 766, 1002, 1149, 1169, 1336, 1532, 2004, 2298, 2338, 2672, 2681, 3064, 3507, 4008, 4596, 4676, 5362, 6128, 7014, 8016, 8043, 9192, 9352, 10724, 14028, 16086, 18384, 18704, 21448, 28056, 32172, 42896, 56112, 63961, 64344, 127922, 128688, 191883, 255844, 383766, 447727, 511688, 767532, 895454, 1023376, 1343181, 1535064, 1790908, 2686362, 3070128, 3581816, 5372724, 7163632, 10745448, 21490896]

約数ペア:

[(1, 21490896), (2, 10745448), (3, 7163632), (4, 5372724), (6, 3581816), (7, 3070128), (8, 2686362), (12, 1790908), (14, 1535064), (16, 1343181), (21, 1023376), (24, 895454), (28, 767532), (42, 511688), (48, 447727), (56, 383766), (84, 255844), (112, 191883), (167, 128688), (168, 127922), (334, 64344), (336, 63961), (383, 56112), (501, 42896), (668, 32172), (766, 28056), (1002, 21448), (1149, 18704), (1169, 18384), (1336, 16086), (1532, 14028), (2004, 10724), (2298, 9352), (2338, 9192), (2672, 8043), (2681, 8016), (3064, 7014), (3507, 6128), (4008, 5362), (4596, 4676)]