21007770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:516

約数の個数: 96

約数和(自身を含む): 60673536

約数和(自身を除く): 39665766

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 49, 62, 70, 93, 98, 105, 147, 155, 186, 210, 217, 245, 294, 310, 434, 461, 465, 490, 651, 735, 922, 930, 1085, 1302, 1383, 1470, 1519, 2170, 2305, 2766, 3038, 3227, 3255, 4557, 4610, 6454, 6510, 6915, 7595, 9114, 9681, 13830, 14291, 15190, 16135, 19362, 22589, 22785, 28582, 32270, 42873, 45178, 45570, 48405, 67767, 71455, 85746, 96810, 100037, 112945, 135534, 142910, 200074, 214365, 225890, 300111, 338835, 428730, 500185, 600222, 677670, 700259, 1000370, 1400518, 1500555, 2100777, 3001110, 3501295, 4201554, 7002590, 10503885, 21007770]

約数ペア:

[(1, 21007770), (2, 10503885), (3, 7002590), (5, 4201554), (6, 3501295), (7, 3001110), (10, 2100777), (14, 1500555), (15, 1400518), (21, 1000370), (30, 700259), (31, 677670), (35, 600222), (42, 500185), (49, 428730), (62, 338835), (70, 300111), (93, 225890), (98, 214365), (105, 200074), (147, 142910), (155, 135534), (186, 112945), (210, 100037), (217, 96810), (245, 85746), (294, 71455), (310, 67767), (434, 48405), (461, 45570), (465, 45178), (490, 42873), (651, 32270), (735, 28582), (922, 22785), (930, 22589), (1085, 19362), (1302, 16135), (1383, 15190), (1470, 14291), (1519, 13830), (2170, 9681), (2305, 9114), (2766, 7595), (3038, 6915), (3227, 6510), (3255, 6454), (4557, 4610)]