21091644

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1256

約数の個数: 96

約数和(自身を含む): 65264640

約数和(自身を除く): 44172996

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 84, 92, 108, 126, 138, 161, 189, 207, 252, 276, 322, 378, 414, 483, 621, 644, 756, 828, 966, 1213, 1242, 1449, 1932, 2426, 2484, 2898, 3639, 4347, 4852, 5796, 7278, 8491, 8694, 10917, 14556, 16982, 17388, 21834, 25473, 27899, 32751, 33964, 43668, 50946, 55798, 65502, 76419, 83697, 101892, 111596, 131004, 152838, 167394, 195293, 229257, 251091, 305676, 334788, 390586, 458514, 502182, 585879, 753273, 781172, 917028, 1004364, 1171758, 1506546, 1757637, 2343516, 3013092, 3515274, 5272911, 7030548, 10545822, 21091644]

約数ペア:

[(1, 21091644), (2, 10545822), (3, 7030548), (4, 5272911), (6, 3515274), (7, 3013092), (9, 2343516), (12, 1757637), (14, 1506546), (18, 1171758), (21, 1004364), (23, 917028), (27, 781172), (28, 753273), (36, 585879), (42, 502182), (46, 458514), (54, 390586), (63, 334788), (69, 305676), (84, 251091), (92, 229257), (108, 195293), (126, 167394), (138, 152838), (161, 131004), (189, 111596), (207, 101892), (252, 83697), (276, 76419), (322, 65502), (378, 55798), (414, 50946), (483, 43668), (621, 33964), (644, 32751), (756, 27899), (828, 25473), (966, 21834), (1213, 17388), (1242, 16982), (1449, 14556), (1932, 10917), (2426, 8694), (2484, 8491), (2898, 7278), (3639, 5796), (4347, 4852)]