21330845955

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{15461}}^1$

素因数の和:15569

約数の個数: 96

約数和(自身を含む): 40754368512

約数和(自身を除く): 19423522557

約数列:

[1, 3, 5, 9, 15, 23, 31, 43, 45, 69, 93, 115, 129, 155, 207, 215, 279, 345, 387, 465, 645, 713, 989, 1035, 1333, 1395, 1935, 2139, 2967, 3565, 3999, 4945, 6417, 6665, 8901, 10695, 11997, 14835, 15461, 19995, 30659, 32085, 44505, 46383, 59985, 77305, 91977, 139149, 153295, 231915, 275931, 355603, 459885, 479291, 664823, 695745, 1066809, 1379655, 1437873, 1778015, 1994469, 2396455, 3200427, 3324115, 4313619, 5334045, 5983407, 7189365, 9972345, 11023693, 15290929, 16002135, 20609513, 21568095, 29917035, 33071079, 45872787, 55118465, 61828539, 76454645, 99213237, 103047565, 137618361, 165355395, 185485617, 229363935, 309142695, 474018799, 496066185, 688091805, 927428085, 1422056397, 2370093995, 4266169191, 7110281985, 21330845955]

約数ペア:

[(1, 21330845955), (3, 7110281985), (5, 4266169191), (9, 2370093995), (15, 1422056397), (23, 927428085), (31, 688091805), (43, 496066185), (45, 474018799), (69, 309142695), (93, 229363935), (115, 185485617), (129, 165355395), (155, 137618361), (207, 103047565), (215, 99213237), (279, 76454645), (345, 61828539), (387, 55118465), (465, 45872787), (645, 33071079), (713, 29917035), (989, 21568095), (1035, 20609513), (1333, 16002135), (1395, 15290929), (1935, 11023693), (2139, 9972345), (2967, 7189365), (3565, 5983407), (3999, 5334045), (4945, 4313619), (6417, 3324115), (6665, 3200427), (8901, 2396455), (10695, 1994469), (11997, 1778015), (14835, 1437873), (15461, 1379655), (19995, 1066809), (30659, 695745), (32085, 664823), (44505, 479291), (46383, 459885), (59985, 355603), (77305, 275931), (91977, 231915), (139149, 153295)]