21023595

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 39037440

約数和(自身を除く): 18013845

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 67, 95, 171, 201, 285, 335, 367, 603, 855, 1005, 1101, 1273, 1835, 3015, 3303, 3819, 5505, 6365, 6973, 11457, 16515, 19095, 20919, 24589, 34865, 57285, 62757, 73767, 104595, 122945, 221301, 313785, 368835, 467191, 1106505, 1401573, 2335955, 4204719, 7007865, 21023595]

約数ペア:

[(1, 21023595), (3, 7007865), (5, 4204719), (9, 2335955), (15, 1401573), (19, 1106505), (45, 467191), (57, 368835), (67, 313785), (95, 221301), (171, 122945), (201, 104595), (285, 73767), (335, 62757), (367, 57285), (603, 34865), (855, 24589), (1005, 20919), (1101, 19095), (1273, 16515), (1835, 11457), (3015, 6973), (3303, 6365), (3819, 5505)]