21218190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 61157376

約数和(自身を除く): 39939186

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 191, 210, 230, 322, 345, 382, 483, 529, 573, 690, 805, 955, 966, 1058, 1146, 1337, 1587, 1610, 1910, 2415, 2645, 2674, 2865, 3174, 3703, 4011, 4393, 4830, 5290, 5730, 6685, 7406, 7935, 8022, 8786, 11109, 13179, 13370, 15870, 18515, 20055, 21965, 22218, 26358, 30751, 37030, 40110, 43930, 55545, 61502, 65895, 92253, 101039, 111090, 131790, 153755, 184506, 202078, 303117, 307510, 461265, 505195, 606234, 707273, 922530, 1010390, 1414546, 1515585, 2121819, 3031170, 3536365, 4243638, 7072730, 10609095, 21218190]

約数ペア:

[(1, 21218190), (2, 10609095), (3, 7072730), (5, 4243638), (6, 3536365), (7, 3031170), (10, 2121819), (14, 1515585), (15, 1414546), (21, 1010390), (23, 922530), (30, 707273), (35, 606234), (42, 505195), (46, 461265), (69, 307510), (70, 303117), (105, 202078), (115, 184506), (138, 153755), (161, 131790), (191, 111090), (210, 101039), (230, 92253), (322, 65895), (345, 61502), (382, 55545), (483, 43930), (529, 40110), (573, 37030), (690, 30751), (805, 26358), (955, 22218), (966, 21965), (1058, 20055), (1146, 18515), (1337, 15870), (1587, 13370), (1610, 13179), (1910, 11109), (2415, 8786), (2645, 8022), (2674, 7935), (2865, 7406), (3174, 6685), (3703, 5730), (4011, 5290), (4393, 4830)]