21316223481

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2957}}^1$

素因数の和:3111

約数の個数: 96

約数和(自身を含む): 36418896000

約数和(自身を除く): 15102672519

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 89, 133, 147, 203, 267, 399, 551, 609, 623, 931, 1421, 1653, 1691, 1869, 2581, 2793, 2957, 3857, 4263, 4361, 5073, 7743, 8871, 11571, 11837, 13083, 18067, 20699, 26999, 35511, 49039, 54201, 56183, 62097, 80997, 82859, 85753, 126469, 144893, 147117, 168549, 248577, 257259, 263173, 343273, 379407, 393281, 434679, 600271, 789519, 1029819, 1179843, 1629307, 1800813, 1842211, 2402911, 2752967, 4201897, 4887921, 5000287, 5526633, 7208733, 7632017, 8258901, 11405149, 12605691, 12895477, 15000861, 22896051, 34215447, 35002009, 38686431, 53424119, 79836043, 105006027, 145008323, 160272357, 239508129, 245014063, 373968833, 435024969, 735042189, 1015058261, 1121906499, 3045174783, 7105407827, 21316223481]

約数ペア:

[(1, 21316223481), (3, 7105407827), (7, 3045174783), (19, 1121906499), (21, 1015058261), (29, 735042189), (49, 435024969), (57, 373968833), (87, 245014063), (89, 239508129), (133, 160272357), (147, 145008323), (203, 105006027), (267, 79836043), (399, 53424119), (551, 38686431), (609, 35002009), (623, 34215447), (931, 22896051), (1421, 15000861), (1653, 12895477), (1691, 12605691), (1869, 11405149), (2581, 8258901), (2793, 7632017), (2957, 7208733), (3857, 5526633), (4263, 5000287), (4361, 4887921), (5073, 4201897), (7743, 2752967), (8871, 2402911), (11571, 1842211), (11837, 1800813), (13083, 1629307), (18067, 1179843), (20699, 1029819), (26999, 789519), (35511, 600271), (49039, 434679), (54201, 393281), (56183, 379407), (62097, 343273), (80997, 263173), (82859, 257259), (85753, 248577), (126469, 168549), (144893, 147117)]