21708108

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 60480000

約数和(自身を除く): 38771892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 71, 76, 108, 114, 142, 149, 171, 213, 228, 284, 298, 342, 426, 447, 513, 596, 639, 684, 852, 894, 1026, 1278, 1341, 1349, 1788, 1917, 2052, 2556, 2682, 2698, 2831, 3834, 4023, 4047, 5364, 5396, 5662, 7668, 8046, 8094, 8493, 10579, 11324, 12141, 16092, 16188, 16986, 21158, 24282, 25479, 31737, 33972, 36423, 42316, 48564, 50958, 63474, 72846, 76437, 95211, 101916, 126948, 145692, 152874, 190422, 201001, 285633, 305748, 380844, 402002, 571266, 603003, 804004, 1142532, 1206006, 1809009, 2412012, 3618018, 5427027, 7236036, 10854054, 21708108]

約数ペア:

[(1, 21708108), (2, 10854054), (3, 7236036), (4, 5427027), (6, 3618018), (9, 2412012), (12, 1809009), (18, 1206006), (19, 1142532), (27, 804004), (36, 603003), (38, 571266), (54, 402002), (57, 380844), (71, 305748), (76, 285633), (108, 201001), (114, 190422), (142, 152874), (149, 145692), (171, 126948), (213, 101916), (228, 95211), (284, 76437), (298, 72846), (342, 63474), (426, 50958), (447, 48564), (513, 42316), (596, 36423), (639, 33972), (684, 31737), (852, 25479), (894, 24282), (1026, 21158), (1278, 16986), (1341, 16188), (1349, 16092), (1788, 12141), (1917, 11324), (2052, 10579), (2556, 8493), (2682, 8094), (2698, 8046), (2831, 7668), (3834, 5662), (4023, 5396), (4047, 5364)]