21210650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 20974150

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 83, 95, 166, 190, 269, 415, 475, 538, 830, 950, 1345, 1577, 2075, 2690, 3154, 4150, 5111, 6725, 7885, 10222, 13450, 15770, 22327, 25555, 39425, 44654, 51110, 78850, 111635, 127775, 223270, 255550, 424213, 558175, 848426, 1116350, 2121065, 4242130, 10605325, 21210650]

約数ペア:

[(1, 21210650), (2, 10605325), (5, 4242130), (10, 2121065), (19, 1116350), (25, 848426), (38, 558175), (50, 424213), (83, 255550), (95, 223270), (166, 127775), (190, 111635), (269, 78850), (415, 51110), (475, 44654), (538, 39425), (830, 25555), (950, 22327), (1345, 15770), (1577, 13450), (2075, 10222), (2690, 7885), (3154, 6725), (4150, 5111)]