21150617475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{2203}}^1$

素因数の和:2501

約数の個数: 96

約数和(自身を含む): 38720577280

約数和(自身を除く): 17569959805

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 229, 325, 559, 645, 687, 975, 1075, 1145, 1677, 2203, 2795, 2977, 3225, 3435, 5725, 6609, 8385, 8931, 9847, 11015, 13975, 14885, 17175, 28639, 29541, 33045, 41925, 44655, 49235, 55075, 74425, 85917, 94729, 128011, 143195, 147705, 165225, 223275, 246175, 284187, 384033, 429585, 473645, 504487, 640055, 715975, 738525, 1231477, 1420935, 1513461, 1920165, 2147925, 2368225, 2522435, 3200275, 3694431, 6157385, 6558331, 7104675, 7567305, 9600825, 12612175, 18472155, 19674993, 21692941, 30786925, 32791655, 37836525, 65078823, 92360775, 98374965, 108464705, 163958275, 282008233, 325394115, 491874825, 542323525, 846024699, 1410041165, 1626970575, 4230123495, 7050205825, 21150617475]

約数ペア:

[(1, 21150617475), (3, 7050205825), (5, 4230123495), (13, 1626970575), (15, 1410041165), (25, 846024699), (39, 542323525), (43, 491874825), (65, 325394115), (75, 282008233), (129, 163958275), (195, 108464705), (215, 98374965), (229, 92360775), (325, 65078823), (559, 37836525), (645, 32791655), (687, 30786925), (975, 21692941), (1075, 19674993), (1145, 18472155), (1677, 12612175), (2203, 9600825), (2795, 7567305), (2977, 7104675), (3225, 6558331), (3435, 6157385), (5725, 3694431), (6609, 3200275), (8385, 2522435), (8931, 2368225), (9847, 2147925), (11015, 1920165), (13975, 1513461), (14885, 1420935), (17175, 1231477), (28639, 738525), (29541, 715975), (33045, 640055), (41925, 504487), (44655, 473645), (49235, 429585), (55075, 384033), (74425, 284187), (85917, 246175), (94729, 223275), (128011, 165225), (143195, 147705)]