21569310

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 144

約数和(自身を含む): 67116816

約数和(自身を除く): 45547506

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 67, 70, 73, 90, 98, 105, 126, 134, 146, 147, 201, 210, 219, 245, 294, 315, 335, 365, 402, 438, 441, 469, 490, 511, 603, 630, 657, 670, 730, 735, 882, 938, 1005, 1022, 1095, 1206, 1314, 1407, 1470, 1533, 2010, 2190, 2205, 2345, 2555, 2814, 3015, 3066, 3283, 3285, 3577, 4221, 4410, 4599, 4690, 4891, 5110, 6030, 6566, 6570, 7035, 7154, 7665, 8442, 9198, 9782, 9849, 10731, 14070, 14673, 15330, 16415, 17885, 19698, 21105, 21462, 22995, 24455, 29346, 29547, 32193, 32830, 34237, 35770, 42210, 44019, 45990, 48910, 49245, 53655, 59094, 64386, 68474, 73365, 88038, 98490, 102711, 107310, 146730, 147735, 160965, 171185, 205422, 220095, 239659, 295470, 308133, 321930, 342370, 440190, 479318, 513555, 616266, 718977, 1027110, 1198295, 1437954, 1540665, 2156931, 2396590, 3081330, 3594885, 4313862, 7189770, 10784655, 21569310]

約数ペア:

[(1, 21569310), (2, 10784655), (3, 7189770), (5, 4313862), (6, 3594885), (7, 3081330), (9, 2396590), (10, 2156931), (14, 1540665), (15, 1437954), (18, 1198295), (21, 1027110), (30, 718977), (35, 616266), (42, 513555), (45, 479318), (49, 440190), (63, 342370), (67, 321930), (70, 308133), (73, 295470), (90, 239659), (98, 220095), (105, 205422), (126, 171185), (134, 160965), (146, 147735), (147, 146730), (201, 107310), (210, 102711), (219, 98490), (245, 88038), (294, 73365), (315, 68474), (335, 64386), (365, 59094), (402, 53655), (438, 49245), (441, 48910), (469, 45990), (490, 44019), (511, 42210), (603, 35770), (630, 34237), (657, 32830), (670, 32193), (730, 29547), (735, 29346), (882, 24455), (938, 22995), (1005, 21462), (1022, 21105), (1095, 19698), (1206, 17885), (1314, 16415), (1407, 15330), (1470, 14673), (1533, 14070), (2010, 10731), (2190, 9849), (2205, 9782), (2345, 9198), (2555, 8442), (2814, 7665), (3015, 7154), (3066, 7035), (3283, 6570), (3285, 6566), (3577, 6030), (4221, 5110), (4410, 4891), (4599, 4690)]