21000873744

素因数分解:

$2^4\times 3^2\times {\mathrm{7043}}^1\times {\mathrm{20707}}^1$

素因数の和:27764

約数の個数: 60

約数和(自身を含む): 58784462256

約数和(自身を除く): 37783588512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 7043, 14086, 20707, 21129, 28172, 41414, 42258, 56344, 62121, 63387, 82828, 84516, 112688, 124242, 126774, 165656, 169032, 186363, 248484, 253548, 331312, 338064, 372726, 496968, 507096, 745452, 993936, 1014192, 1490904, 2981808, 145839401, 291678802, 437518203, 583357604, 875036406, 1166715208, 1312554609, 1750072812, 2333430416, 2625109218, 3500145624, 5250218436, 7000291248, 10500436872, 21000873744]

約数ペア:

[(1, 21000873744), (2, 10500436872), (3, 7000291248), (4, 5250218436), (6, 3500145624), (8, 2625109218), (9, 2333430416), (12, 1750072812), (16, 1312554609), (18, 1166715208), (24, 875036406), (36, 583357604), (48, 437518203), (72, 291678802), (144, 145839401), (7043, 2981808), (14086, 1490904), (20707, 1014192), (21129, 993936), (28172, 745452), (41414, 507096), (42258, 496968), (56344, 372726), (62121, 338064), (63387, 331312), (82828, 253548), (84516, 248484), (112688, 186363), (124242, 169032), (126774, 165656)]