21053004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 62125056

約数和(自身を除く): 41072052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 23, 28, 34, 42, 46, 51, 68, 69, 84, 92, 102, 119, 138, 161, 204, 238, 276, 322, 357, 391, 476, 483, 641, 644, 714, 782, 966, 1173, 1282, 1428, 1564, 1923, 1932, 2346, 2564, 2737, 3846, 4487, 4692, 5474, 7692, 8211, 8974, 10897, 10948, 13461, 14743, 16422, 17948, 21794, 26922, 29486, 32691, 32844, 43588, 44229, 53844, 58972, 65382, 76279, 88458, 103201, 130764, 152558, 176916, 206402, 228837, 250631, 305116, 309603, 412804, 457674, 501262, 619206, 751893, 915348, 1002524, 1238412, 1503786, 1754417, 3007572, 3508834, 5263251, 7017668, 10526502, 21053004]

約数ペア:

[(1, 21053004), (2, 10526502), (3, 7017668), (4, 5263251), (6, 3508834), (7, 3007572), (12, 1754417), (14, 1503786), (17, 1238412), (21, 1002524), (23, 915348), (28, 751893), (34, 619206), (42, 501262), (46, 457674), (51, 412804), (68, 309603), (69, 305116), (84, 250631), (92, 228837), (102, 206402), (119, 176916), (138, 152558), (161, 130764), (204, 103201), (238, 88458), (276, 76279), (322, 65382), (357, 58972), (391, 53844), (476, 44229), (483, 43588), (641, 32844), (644, 32691), (714, 29486), (782, 26922), (966, 21794), (1173, 17948), (1282, 16422), (1428, 14743), (1564, 13461), (1923, 10948), (1932, 10897), (2346, 8974), (2564, 8211), (2737, 7692), (3846, 5474), (4487, 4692)]